42764233531 has 2 divisors, whose sum is σ = 42764233532. Its totient is φ = 42764233530.

The previous prime is 42764233529. The next prime is 42764233541. The reversal of 42764233531 is 13533246724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42764233531 - 2¹ = 42764233529 is a prime.

It is a super-2 number, since 2×42764233531² (a number of 22 digits) contains 22 as substring.

Together with 42764233529, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (42764233541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21382116765 + 21382116766.

It is an arithmetic number, because the mean of its divisors is an integer number (21382116766).

Almost surely, 2^42764233531 is an apocalyptic number.

42764233531 is a deficient number, since it is larger than the sum of its proper divisors (1).

42764233531 is an equidigital number, since it uses as much as digits as its factorization.

42764233531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 40.

The spelling of 42764233531 in words is "forty-two billion, seven hundred sixty-four million, two hundred thirty-three thousand, five hundred thirty-one".