42631142377 has 2 divisors, whose sum is σ = 42631142378. Its totient is φ = 42631142376.

The previous prime is 42631142353. The next prime is 42631142447. The reversal of 42631142377 is 77324113624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29014352896 + 13616789481 = 170336^2 + 116691^2 .

It is a cyclic number.

It is not a de Polignac number, because 42631142377 - 2⁷ = 42631142249 is a prime.

It is not a weakly prime, because it can be changed into another prime (42631142317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21315571188 + 21315571189.

It is an arithmetic number, because the mean of its divisors is an integer number (21315571189).

Almost surely, 2^42631142377 is an apocalyptic number.

It is an amenable number.

42631142377 is a deficient number, since it is larger than the sum of its proper divisors (1).

42631142377 is an equidigital number, since it uses as much as digits as its factorization.

42631142377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 40.

The spelling of 42631142377 in words is "forty-two billion, six hundred thirty-one million, one hundred forty-two thousand, three hundred seventy-seven".