49653886464 has 800 divisors, whose sum is σ = 186328074240. Its totient is φ = 12815843328.

The previous prime is 49653886427. The next prime is 49653886619. The reversal of 49653886464 is 46468835694.

49653886464 is a `hidden beast` number, since 4 + 9 + 65 + 38 + 86 + 464 = 666.

It is a super-3 number, since 3×49653886464³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 222663057 + ... + 222663279.

Almost surely, 2^49653886464 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 49653886464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93164037120).

49653886464 is an abundant number, since it is smaller than the sum of its proper divisors (136674187776).

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

49653886464 is a wasteful number, since it uses less digits than its factorization.

49653886464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 307 counting only the distinct ones).

The product of its digits is 119439360, while the sum is 63.

The spelling of 49653886464 in words is "forty-nine billion, six hundred fifty-three million, eight hundred eighty-six thousand, four hundred sixty-four".