4200121057792 has 80 divisors (see below), whose sum is σ = 9693478140192. Its totient is φ = 1796843192320.

The previous prime is 4200121057771. The next prime is 4200121057819. The reversal of 4200121057792 is 2977501210024.

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, 21838378 + ... + 22029865.

Almost surely, 2^{4200121057792} is an apocalyptic number.

It is an amenable number.

4200121057792 is an abundant number, since it is smaller than the sum of its proper divisors (5493357082400).

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

4200121057792 is a wasteful number, since it uses less digits than its factorization.

4200121057792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43868289 (or 43868273 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 4200121057792 in words is "four trillion, two hundred billion, one hundred twenty-one million, fifty-seven thousand, seven hundred ninety-two".