842457051 has 32 divisors (see below), whose sum is σ = 1262177280. Its totient is φ = 555337728.

The previous prime is 842457037. The next prime is 842457067. The reversal of 842457051 is 150754248.

842457051 is a `hidden beast` number, since 84 + 2 + 4 + 570 + 5 + 1 = 666.

It is not a de Polignac number, because 842457051 - 2⁵ = 842457019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 842456997 and 842457015.

It is not an unprimeable number, because it can be changed into a prime (842457071) 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, 1158450 + ... + 1159176.

It is an arithmetic number, because the mean of its divisors is an integer number (39443040).

Almost surely, 2^842457051 is an apocalyptic number.

842457051 is a deficient number, since it is larger than the sum of its proper divisors (419720229).

842457051 is a wasteful number, since it uses less digits than its factorization.

842457051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160 (or 1154 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 842457051 is about 29025.1106974633. The cubic root of 842457051 is about 944.4578699509.

The spelling of 842457051 in words is "eight hundred forty-two million, four hundred fifty-seven thousand, fifty-one".