77540660041368 has 32 divisors (see below), whose sum is σ = 193856333751360. Its totient is φ = 25846262194080.

The previous prime is 77540660041357. The next prime is 77540660041391. The reversal of 77540660041368 is 86314006604577.

It is a super-2 number, since 2×77540660041368² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38015830 + ... + 40003557.

It is an arithmetic number, because the mean of its divisors is an integer number (6058010429730).

Almost surely, 2^{77540660041368} is an apocalyptic number.

It is an amenable number.

77540660041368 is an abundant number, since it is smaller than the sum of its proper divisors (116315673709992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77540660041368 is a wasteful number, since it uses less digits than its factorization.

77540660041368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78060807 (or 78060803 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 57.

The spelling of 77540660041368 in words is "seventy-seven trillion, five hundred forty billion, six hundred sixty million, forty-one thousand, three hundred sixty-eight".