84237918253039 has 2 divisors, whose sum is σ = 84237918253040. Its totient is φ = 84237918253038.

The previous prime is 84237918252973. The next prime is 84237918253087. The reversal of 84237918253039 is 93035281973248.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84237918253039 is a prime.

It is a super-2 number, since 2×84237918253039² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84237918253339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42118959126519 + 42118959126520.

It is an arithmetic number, because the mean of its divisors is an integer number (42118959126520).

Almost surely, 2^{84237918253039} is an apocalyptic number.

84237918253039 is a deficient number, since it is larger than the sum of its proper divisors (1).

84237918253039 is an equidigital number, since it uses as much as digits as its factorization.

84237918253039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78382080, while the sum is 64.

The spelling of 84237918253039 in words is "eighty-four trillion, two hundred thirty-seven billion, nine hundred eighteen million, two hundred fifty-three thousand, thirty-nine".