49151999997 has 24 divisors (see below), whose sum is σ = 73307037440. Its totient is φ = 31702544640.

The previous prime is 49151999957. The next prime is 49152000013. The reversal of 49151999997 is 79999915194.

It is not a de Polignac number, because 49151999997 - 2⁶ = 49151999933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49151999927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1130658 + ... + 1173324.

Almost surely, 2^49151999997 is an apocalyptic number.

It is an amenable number.

49151999997 is a deficient number, since it is larger than the sum of its proper divisors (24155037443).

49151999997 is a wasteful number, since it uses less digits than its factorization.

49151999997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46833 (or 46830 counting only the distinct ones).

The product of its digits is 74401740, while the sum is 72.

The spelling of 49151999997 in words is "forty-nine billion, one hundred fifty-one million, nine hundred ninety-nine thousand, nine hundred ninety-seven".