172342764540 has 72 divisors (see below), whose sum is σ = 522916325568. Its totient is φ = 45945475200.

The previous prime is 172342764533. The next prime is 172342764541. The reversal of 172342764540 is 45467243271.

172342764540 is a `hidden beast` number, since 1 + 7 + 2 + 3 + 42 + 7 + 64 + 540 = 666.

172342764540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172342764541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 536829 + ... + 795531.

It is an arithmetic number, because the mean of its divisors is an integer number (7262726744).

Almost surely, 2^172342764540 is an apocalyptic number.

172342764540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172342764540 is an abundant number, since it is smaller than the sum of its proper divisors (350573561028).

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

172342764540 is a wasteful number, since it uses less digits than its factorization.

172342764540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262419 (or 262414 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 45.

The spelling of 172342764540 in words is "one hundred seventy-two billion, three hundred forty-two million, seven hundred sixty-four thousand, five hundred forty".