247640074336140 has 48 divisors (see below), whose sum is σ = 693412012220928. Its totient is φ = 66035467053504.

The previous prime is 247640074336133. The next prime is 247640074336159. The reversal of 247640074336140 is 41633470046742.

247640074336140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×247640074336140² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56821822 + ... + 61024581.

It is an arithmetic number, because the mean of its divisors is an integer number (14446083587936).

Almost surely, 2^{247640074336140} is an apocalyptic number.

247640074336140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

247640074336140 is an abundant number, since it is smaller than the sum of its proper divisors (445771937884788).

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

247640074336140 is a wasteful number, since it uses less digits than its factorization.

247640074336140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117881438 (or 117881436 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 51.

The spelling of 247640074336140 in words is "two hundred forty-seven trillion, six hundred forty billion, seventy-four million, three hundred thirty-six thousand, one hundred forty".