69918000538 has 8 divisors (see below), whose sum is σ = 104950396980. Its totient is φ = 34934534880.

The previous prime is 69918000533. The next prime is 69918000539. The reversal of 69918000538 is 83500081996.

It can be written as a sum of positive squares in 2 ways, for example, as 69512904409 + 405096129 = 263653^2 + 20127^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 69918000491 and 69918000500.

It is not an unprimeable number, because it can be changed into a prime (69918000533) 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, 12229123 + ... + 12234838.

Almost surely, 2^69918000538 is an apocalyptic number.

69918000538 is the 141339-th centered heptagonal number.

69918000538 is a deficient number, since it is larger than the sum of its proper divisors (35032396442).

69918000538 is a wasteful number, since it uses less digits than its factorization.

69918000538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24465392.

The product of its (nonzero) digits is 466560, while the sum is 49.

The spelling of 69918000538 in words is "sixty-nine billion, nine hundred eighteen million, five hundred thirty-eight", and thus it is an aban number.