5311978937 has 2 divisors, whose sum is σ = 5311978938. Its totient is φ = 5311978936.

The previous prime is 5311978927. The next prime is 5311978993. The reversal of 5311978937 is 7398791135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3796901161 + 1515077776 = 61619^2 + 38924^2 .

It is a cyclic number.

It is not a de Polignac number, because 5311978937 - 2⁴ = 5311978921 is a prime.

It is not a weakly prime, because it can be changed into another prime (5311978927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2655989468 + 2655989469.

It is an arithmetic number, because the mean of its divisors is an integer number (2655989469).

Almost surely, 2^5311978937 is an apocalyptic number.

It is an amenable number.

5311978937 is a deficient number, since it is larger than the sum of its proper divisors (1).

5311978937 is an equidigital number, since it uses as much as digits as its factorization.

5311978937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1428840, while the sum is 53.

The square root of 5311978937 is about 72883.3241352231. The cubic root of 5311978937 is about 1744.8259623968.

The spelling of 5311978937 in words is "five billion, three hundred eleven million, nine hundred seventy-eight thousand, nine hundred thirty-seven".