10137991777 has 2 divisors, whose sum is σ = 10137991778. Its totient is φ = 10137991776.

The previous prime is 10137991753. The next prime is 10137991811. The reversal of 10137991777 is 77719973101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7902498816 + 2235492961 = 88896^2 + 47281^2 .

It is a cyclic number.

It is not a de Polignac number, because 10137991777 - 2¹⁵ = 10137959009 is a prime.

It is not a weakly prime, because it can be changed into another prime (10137931777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5068995888 + 5068995889.

It is an arithmetic number, because the mean of its divisors is an integer number (5068995889).

Almost surely, 2^10137991777 is an apocalyptic number.

It is an amenable number.

10137991777 is a deficient number, since it is larger than the sum of its proper divisors (1).

10137991777 is an equidigital number, since it uses as much as digits as its factorization.

10137991777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 583443, while the sum is 52.

The spelling of 10137991777 in words is "ten billion, one hundred thirty-seven million, nine hundred ninety-one thousand, seven hundred seventy-seven".