40331031077 has 2 divisors, whose sum is σ = 40331031078. Its totient is φ = 40331031076.

The previous prime is 40331031043. The next prime is 40331031113. The reversal of 40331031077 is 77013013304.

40331031077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37548363076 + 2782668001 = 193774^2 + 52751^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40331031077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40331037077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20165515538 + 20165515539.

It is an arithmetic number, because the mean of its divisors is an integer number (20165515539).

Almost surely, 2^40331031077 is an apocalyptic number.

It is an amenable number.

40331031077 is a deficient number, since it is larger than the sum of its proper divisors (1).

40331031077 is an equidigital number, since it uses as much as digits as its factorization.

40331031077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 29.

The spelling of 40331031077 in words is "forty billion, three hundred thirty-one million, thirty-one thousand, seventy-seven".