49797892997 has 4 divisors (see below), whose sum is σ = 50156151360. Its totient is φ = 49439634636.

The previous prime is 49797892993. The next prime is 49797893027. The reversal of 49797892997 is 79929879794.

49797892997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79929879794 = 2 ⋅39964939897.

It is a cyclic number.

It is not a de Polignac number, because 49797892997 - 2² = 49797892993 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 (49797892993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179128973 + ... + 179129250.

It is an arithmetic number, because the mean of its divisors is an integer number (12539037840).

Almost surely, 2^49797892997 is an apocalyptic number.

It is an amenable number.

49797892997 is a deficient number, since it is larger than the sum of its proper divisors (358258363).

49797892997 is a wasteful number, since it uses less digits than its factorization.

49797892997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358258362.

The product of its digits is 1296243648, while the sum is 80.

The spelling of 49797892997 in words is "forty-nine billion, seven hundred ninety-seven million, eight hundred ninety-two thousand, nine hundred ninety-seven".