117257620040 has 96 divisors (see below), whose sum is σ = 291022683840. Its totient is φ = 42487969920.

The previous prime is 117257620027. The next prime is 117257620097. The reversal of 117257620040 is 40026752711.

It is a Cunningham number, because it is equal to 342429²-1.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1326917 + ... + 1412523.

It is an arithmetic number, because the mean of its divisors is an integer number (3031486290).

Almost surely, 2^117257620040 is an apocalyptic number.

117257620040 is a gapful number since it is divisible by the number (10) 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 117257620040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145511341920).

117257620040 is an abundant number, since it is smaller than the sum of its proper divisors (173765063800).

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

117257620040 is a wasteful number, since it uses less digits than its factorization.

117257620040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85923 (or 85908 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The spelling of 117257620040 in words is "one hundred seventeen billion, two hundred fifty-seven million, six hundred twenty thousand, forty".