35972138577 has 16 divisors (see below), whose sum is σ = 49972764672. Its totient is φ = 22990929360.

The previous prime is 35972138561. The next prime is 35972138593. The reversal of 35972138577 is 77583127953.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (35972138561) and next prime (35972138593).

It is not a de Polignac number, because 35972138577 - 2⁴ = 35972138561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (35972138177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1797513 + ... + 1817414.

It is an arithmetic number, because the mean of its divisors is an integer number (3123297792).

Almost surely, 2^35972138577 is an apocalyptic number.

It is an amenable number.

35972138577 is a deficient number, since it is larger than the sum of its proper divisors (14000626095).

35972138577 is a wasteful number, since it uses less digits than its factorization.

35972138577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3615068.

The product of its digits is 11113200, while the sum is 57.

The spelling of 35972138577 in words is "thirty-five billion, nine hundred seventy-two million, one hundred thirty-eight thousand, five hundred seventy-seven".