172426873604 has 6 divisors (see below), whose sum is σ = 301747028814. Its totient is φ = 86213436800.

The previous prime is 172426873589. The next prime is 172426873631. The reversal of 172426873604 is 406378624271.

It can be written as a sum of positive squares in only one way, i.e., 86437176004 + 85989697600 = 294002^2 + 293240^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21553359197 + ... + 21553359204.

It is an arithmetic number, because the mean of its divisors is an integer number (50291171469).

Almost surely, 2^172426873604 is an apocalyptic number.

It is an amenable number.

172426873604 is a deficient number, since it is larger than the sum of its proper divisors (129320155210).

172426873604 is a wasteful number, since it uses less digits than its factorization.

172426873604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43106718405 (or 43106718403 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 50.

The spelling of 172426873604 in words is "one hundred seventy-two billion, four hundred twenty-six million, eight hundred seventy-three thousand, six hundred four".