18902674637 has 16 divisors (see below), whose sum is σ = 24591624192. Its totient is φ = 14088948720.

The previous prime is 18902674621. The next prime is 18902674673. The reversal of 18902674637 is 73647620981.

It is not a de Polignac number, because 18902674637 - 2⁴ = 18902674621 is a prime.

It is a super-2 number, since 2×18902674637² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18902634637) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5334953 + ... + 5338494.

It is an arithmetic number, because the mean of its divisors is an integer number (1536976512).

Almost surely, 2^18902674637 is an apocalyptic number.

It is an amenable number.

18902674637 is a deficient number, since it is larger than the sum of its proper divisors (5688949555).

18902674637 is a wasteful number, since it uses less digits than its factorization.

18902674637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10673488.

The product of its (nonzero) digits is 3048192, while the sum is 53.

The spelling of 18902674637 in words is "eighteen billion, nine hundred two million, six hundred seventy-four thousand, six hundred thirty-seven".