3642507172857 has 32 divisors (see below), whose sum is σ = 5581870202880. Its totient is φ = 2069665580160.

The previous prime is 3642507172849. The next prime is 3642507172861. The reversal of 3642507172857 is 7582717052463.

It is a happy number.

3642507172857 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3642507172857 - 2³ = 3642507172849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3642507172797 and 3642507172806.

It is not an unprimeable number, because it can be changed into a prime (3642507170857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86740488 + ... + 86782470.

It is an arithmetic number, because the mean of its divisors is an integer number (174433443840).

Almost surely, 2^{3642507172857} is an apocalyptic number.

It is an amenable number.

3642507172857 is a deficient number, since it is larger than the sum of its proper divisors (1939363030023).

3642507172857 is a wasteful number, since it uses less digits than its factorization.

3642507172857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65253.

The product of its (nonzero) digits is 19756800, while the sum is 57.

The spelling of 3642507172857 in words is "three trillion, six hundred forty-two billion, five hundred seven million, one hundred seventy-two thousand, eight hundred fifty-seven".