69401687040 has 528 divisors, whose sum is σ = 280501228800. Its totient is φ = 15859630080.

The previous prime is 69401687039. The next prime is 69401687057. The reversal of 69401687040 is 4078610496.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15803245 + ... + 15807635.

Almost surely, 2^69401687040 is an apocalyptic number.

69401687040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69401687040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140250614400).

69401687040 is an abundant number, since it is smaller than the sum of its proper divisors (211099541760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69401687040 is a wasteful number, since it uses less digits than its factorization.

69401687040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4443 (or 4408 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 69401687040 in words is "sixty-nine billion, four hundred one million, six hundred eighty-seven thousand, forty".