172870962540 has 96 divisors (see below), whose sum is σ = 503245661184. Its totient is φ = 44303255040.

The previous prime is 172870962529. The next prime is 172870962541. The reversal of 172870962540 is 45269078271.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (172870962541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 359604 + ... + 689243.

It is an arithmetic number, because the mean of its divisors is an integer number (5242142304).

Almost surely, 2^172870962540 is an apocalyptic number.

172870962540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172870962540 is an abundant number, since it is smaller than the sum of its proper divisors (330374698644).

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

172870962540 is a wasteful number, since it uses less digits than its factorization.

172870962540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048967 (or 1048965 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 172870962540 in words is "one hundred seventy-two billion, eight hundred seventy million, nine hundred sixty-two thousand, five hundred forty".