4172557837920 has 48 divisors (see below), whose sum is σ = 13143557190960. Its totient is φ = 1112682089984.

The previous prime is 4172557837907. The next prime is 4172557837969. The reversal of 4172557837920 is 297387552714.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4346413935 + ... + 4346414894.

It is an arithmetic number, because the mean of its divisors is an integer number (273824108145).

Almost surely, 2^{4172557837920} is an apocalyptic number.

4172557837920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4172557837920 is an abundant number, since it is smaller than the sum of its proper divisors (8970999353040).

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

4172557837920 is a wasteful number, since it uses less digits than its factorization.

4172557837920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8692828847 (or 8692828839 counting only the distinct ones).

The product of its (nonzero) digits is 29635200, while the sum is 60.

The spelling of 4172557837920 in words is "four trillion, one hundred seventy-two billion, five hundred fifty-seven million, eight hundred thirty-seven thousand, nine hundred twenty".