120787073577 has 6 divisors (see below), whose sum is σ = 174470217402. Its totient is φ = 80524715712.

The previous prime is 120787073557. The next prime is 120787073579. The reversal of 120787073577 is 775370787021.

120787073577 is a `hidden beast` number, since 1 + 207 + 87 + 0 + 7 + 357 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 94340508201 + 26446565376 = 307149^2 + 162624^2 .

It is a de Polignac number, because none of the positive numbers 2^k-120787073577 is a prime.

It is a super-2 number, since 2×120787073577² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120787073579) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6710392968 + ... + 6710392985.

It is an arithmetic number, because the mean of its divisors is an integer number (29078369567).

Almost surely, 2^120787073577 is an apocalyptic number.

It is an amenable number.

120787073577 is a deficient number, since it is larger than the sum of its proper divisors (53683143825).

120787073577 is a wasteful number, since it uses less digits than its factorization.

120787073577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13420785959 (or 13420785956 counting only the distinct ones).

The product of its (nonzero) digits is 4033680, while the sum is 54.

The spelling of 120787073577 in words is "one hundred twenty billion, seven hundred eighty-seven million, seventy-three thousand, five hundred seventy-seven".