49980457464 has 144 divisors (see below), whose sum is σ = 151947610920. Its totient is φ = 13659085440.

The previous prime is 49980457393. The next prime is 49980457489. The reversal of 49980457464 is 46475408994.

It is a super-2 number, since 2×49980457464² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 49980457398 and 49980457407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 581934 + ... + 662274.

Almost surely, 2^49980457464 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 49980457464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75973805460).

49980457464 is an abundant number, since it is smaller than the sum of its proper divisors (101967153456).

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

49980457464 is a wasteful number, since it uses less digits than its factorization.

49980457464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80410 (or 80376 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 60.

The spelling of 49980457464 in words is "forty-nine billion, nine hundred eighty million, four hundred fifty-seven thousand, four hundred sixty-four".