942442057531 has 4 divisors (see below), whose sum is σ = 1014937600432. Its totient is φ = 869946514632.

The previous prime is 942442057519. The next prime is 942442057541. The reversal of 942442057531 is 135750244249.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135750244249 = 368443².

It is not a de Polignac number, because 942442057531 - 2¹⁵ = 942442024763 is a prime.

It is a super-2 number, since 2×942442057531² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (942442057541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36247771431 + ... + 36247771456.

It is an arithmetic number, because the mean of its divisors is an integer number (253734400108).

Almost surely, 2^942442057531 is an apocalyptic number.

942442057531 is a deficient number, since it is larger than the sum of its proper divisors (72495542901).

942442057531 is a wasteful number, since it uses less digits than its factorization.

942442057531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72495542900.

The product of its (nonzero) digits is 1209600, while the sum is 46.

It can be divided in two parts, 94244 and 2057531, that added together give a triangular number (2151775 = T₂₀₇₄).

The spelling of 942442057531 in words is "nine hundred forty-two billion, four hundred forty-two million, fifty-seven thousand, five hundred thirty-one".