172078196076 has 108 divisors (see below), whose sum is σ = 462294771120. Its totient is φ = 53958750720.

The previous prime is 172078196041. The next prime is 172078196083. The reversal of 172078196076 is 670691870271.

172078196076 is a `hidden beast` number, since 1 + 7 + 20 + 7 + 8 + 1 + 9 + 607 + 6 = 666.

It is a super-2 number, since 2×172078196076² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 40687930 + ... + 40692158.

It is an arithmetic number, because the mean of its divisors is an integer number (4280507140).

Almost surely, 2^172078196076 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172078196076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231147385560).

172078196076 is an abundant number, since it is smaller than the sum of its proper divisors (290216575044).

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

172078196076 is a wasteful number, since it uses less digits than its factorization.

172078196076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8184 (or 8162 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 54.

The spelling of 172078196076 in words is "one hundred seventy-two billion, seventy-eight million, one hundred ninety-six thousand, seventy-six".