172968451512 has 64 divisors (see below), whose sum is σ = 433567464960. Its totient is φ = 57503520000.

The previous prime is 172968451507. The next prime is 172968451519. The reversal of 172968451512 is 215154869271.

It is a super-2 number, since 2×172968451512² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172968451519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14611548 + ... + 14623380.

It is an arithmetic number, because the mean of its divisors is an integer number (6774491640).

Almost surely, 2^172968451512 is an apocalyptic number.

172968451512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

172968451512 is an abundant number, since it is smaller than the sum of its proper divisors (260599013448).

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

172968451512 is a wasteful number, since it uses less digits than its factorization.

172968451512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13404 (or 13400 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 51.

The spelling of 172968451512 in words is "one hundred seventy-two billion, nine hundred sixty-eight million, four hundred fifty-one thousand, five hundred twelve".