69140899840 has 384 divisors, whose sum is σ = 183414067200. Its totient is φ = 24928583680.

The previous prime is 69140899831. The next prime is 69140899873. The reversal of 69140899840 is 4899804196.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (58).

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 31 ways as a sum of consecutive naturals, for example, 361994145 + ... + 361994335.

It is an arithmetic number, because the mean of its divisors is an integer number (477640800).

Almost surely, 2^69140899840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69140899840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91707033600).

69140899840 is an abundant number, since it is smaller than the sum of its proper divisors (114273167360).

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

69140899840 is a wasteful number, since it uses less digits than its factorization.

69140899840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 58.

The spelling of 69140899840 in words is "sixty-nine billion, one hundred forty million, eight hundred ninety-nine thousand, eight hundred forty".