69520840987 has 12 divisors (see below), whose sum is σ = 75730772880. Its totient is φ = 63788788128.

The previous prime is 69520840981. The next prime is 69520840999. The reversal of 69520840987 is 78904802596.

It is not a de Polignac number, because 69520840987 - 2³ = 69520840979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69520840981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1203412 + ... + 1259857.

It is an arithmetic number, because the mean of its divisors is an integer number (6310897740).

Almost surely, 2^69520840987 is an apocalyptic number.

69520840987 is a deficient number, since it is larger than the sum of its proper divisors (6209931893).

69520840987 is a wasteful number, since it uses less digits than its factorization.

69520840987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2463462 (or 2463449 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 69520840987 in words is "sixty-nine billion, five hundred twenty million, eight hundred forty thousand, nine hundred eighty-seven".