49622717664 has 240 divisors, whose sum is σ = 166412041488. Its totient is φ = 14370213888.

The previous prime is 49622717657. The next prime is 49622717671. The reversal of 49622717664 is 46671722694.

49622717664 is a `hidden beast` number, since 4 + 9 + 622 + 7 + 1 + 7 + 6 + 6 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (49622717657) and next prime (49622717671).

It is a super-2 number, since 2×49622717664² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 49622717664.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 529519 + ... + 616145.

Almost surely, 2^49622717664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 49622717664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83206020744).

49622717664 is an abundant number, since it is smaller than the sum of its proper divisors (116789323824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49622717664 is a wasteful number, since it uses less digits than its factorization.

49622717664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86679 (or 86662 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 54.

The spelling of 49622717664 in words is "forty-nine billion, six hundred twenty-two million, seven hundred seventeen thousand, six hundred sixty-four".