69712878140 has 24 divisors (see below), whose sum is σ = 146436564960. Its totient is φ = 27877623488.

The previous prime is 69712878113. The next prime is 69712878149. The reversal of 69712878140 is 4187821796.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69712878149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394247 + ... + 543006.

It is an arithmetic number, because the mean of its divisors is an integer number (6101523540).

Almost surely, 2^69712878140 is an apocalyptic number.

It is an amenable number.

69712878140 is an abundant number, since it is smaller than the sum of its proper divisors (76723686820).

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

69712878140 is a wasteful number, since it uses less digits than its factorization.

69712878140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940981 (or 940979 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 53.

The spelling of 69712878140 in words is "sixty-nine billion, seven hundred twelve million, eight hundred seventy-eight thousand, one hundred forty".