90942004097 has 4 divisors (see below), whose sum is σ = 103933718976. Its totient is φ = 77950289220.

The previous prime is 90942004093. The next prime is 90942004099. The reversal of 90942004097 is 79040024909.

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: 79040024909 = 19 ⋅4160001311.

It is a cyclic number.

It is not a de Polignac number, because 90942004097 - 2² = 90942004093 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90942004093) 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, 6495857429 + ... + 6495857442.

It is an arithmetic number, because the mean of its divisors is an integer number (25983429744).

Almost surely, 2^90942004097 is an apocalyptic number.

It is an amenable number.

90942004097 is a deficient number, since it is larger than the sum of its proper divisors (12991714879).

90942004097 is a wasteful number, since it uses less digits than its factorization.

90942004097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12991714878.

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 90942004097 in words is "ninety billion, nine hundred forty-two million, four thousand, ninety-seven".