84700156231 has 2 divisors, whose sum is σ = 84700156232. Its totient is φ = 84700156230.

The previous prime is 84700156199. The next prime is 84700156337. The reversal of 84700156231 is 13265100748.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84700156231 - 2⁵ = 84700156199 is a prime.

It is a super-2 number, since 2×84700156231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84700150231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42350078115 + 42350078116.

It is an arithmetic number, because the mean of its divisors is an integer number (42350078116).

Almost surely, 2^84700156231 is an apocalyptic number.

84700156231 is a deficient number, since it is larger than the sum of its proper divisors (1).

84700156231 is an equidigital number, since it uses as much as digits as its factorization.

84700156231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 37.

Adding to 84700156231 its reverse (13265100748), we get a palindrome (97965256979).

The spelling of 84700156231 in words is "eighty-four billion, seven hundred million, one hundred fifty-six thousand, two hundred thirty-one".