2135777777757 has 48 divisors (see below), whose sum is σ = 3429956694528. Its totient is φ = 1271755105920.

The previous prime is 2135777777689. The next prime is 2135777777767. The reversal of 2135777777757 is 7577777775312.

2135777777757 is a `hidden beast` number, since 21 + 357 + 77 + 77 + 77 + 57 = 666.

It is not a de Polignac number, because 2135777777757 - 2¹¹ = 2135777775709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135777777767) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29861643 + ... + 29933079.

It is an arithmetic number, because the mean of its divisors is an integer number (71457431136).

Almost surely, 2^{2135777777757} is an apocalyptic number.

It is an amenable number.

2135777777757 is a deficient number, since it is larger than the sum of its proper divisors (1294178916771).

2135777777757 is a wasteful number, since it uses less digits than its factorization.

2135777777757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79730 (or 79727 counting only the distinct ones).

The product of its digits is 864720150, while the sum is 72.

The spelling of 2135777777757 in words is "two trillion, one hundred thirty-five billion, seven hundred seventy-seven million, seven hundred seventy-seven thousand, seven hundred fifty-seven".