172074242948 has 6 divisors (see below), whose sum is σ = 301129925166. Its totient is φ = 86037121472.

The previous prime is 172074242941. The next prime is 172074242993. The reversal of 172074242948 is 849242470271.

It can be written as a sum of positive squares in only one way, i.e., 171104667904 + 969575044 = 413648^2 + 31138^2 .

It is a super-2 number, since 2×172074242948² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 172074242896 and 172074242905.

It is not an unprimeable number, because it can be changed into a prime (172074242941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21509280365 + ... + 21509280372.

It is an arithmetic number, because the mean of its divisors is an integer number (50188320861).

Almost surely, 2^172074242948 is an apocalyptic number.

It is an amenable number.

172074242948 is a deficient number, since it is larger than the sum of its proper divisors (129055682218).

172074242948 is a wasteful number, since it uses less digits than its factorization.

172074242948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43018560741 (or 43018560739 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 50.

The spelling of 172074242948 in words is "one hundred seventy-two billion, seventy-four million, two hundred forty-two thousand, nine hundred forty-eight".