42253239477 has 16 divisors (see below), whose sum is σ = 57273834240. Its totient is φ = 27700939200.

The previous prime is 42253239473. The next prime is 42253239521. The reversal of 42253239477 is 77493235224.

It is not a de Polignac number, because 42253239477 - 2² = 42253239473 is a prime.

It is a super-2 number, since 2×42253239477² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42253239473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 899227 + ... + 945047.

It is an arithmetic number, because the mean of its divisors is an integer number (3579614640).

Almost surely, 2^42253239477 is an apocalyptic number.

It is an amenable number.

42253239477 is a deficient number, since it is larger than the sum of its proper divisors (15020594763).

42253239477 is a wasteful number, since it uses less digits than its factorization.

42253239477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50924.

The product of its digits is 2540160, while the sum is 48.

The spelling of 42253239477 in words is "forty-two billion, two hundred fifty-three million, two hundred thirty-nine thousand, four hundred seventy-seven".