18958005137 has 8 divisors (see below), whose sum is σ = 19116168192. Its totient is φ = 18799981200.

The previous prime is 18958005133. The next prime is 18958005161. The reversal of 18958005137 is 73150085981.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18958005137 - 2² = 18958005133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18958005091 and 18958005100.

It is not an unprimeable number, because it can be changed into a prime (18958005133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248462 + ... + 315672.

It is an arithmetic number, because the mean of its divisors is an integer number (2389521024).

Almost surely, 2^18958005137 is an apocalyptic number.

It is an amenable number.

18958005137 is a deficient number, since it is larger than the sum of its proper divisors (158163055).

18958005137 is a wasteful number, since it uses less digits than its factorization.

18958005137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69559.

The product of its (nonzero) digits is 302400, while the sum is 47.

The spelling of 18958005137 in words is "eighteen billion, nine hundred fifty-eight million, five thousand, one hundred thirty-seven".