77772672541740 has 48 divisors (see below), whose sum is σ = 237560163402240. Its totient is φ = 18853981222080.

The previous prime is 77772672541723. The next prime is 77772672541763. The reversal of 77772672541740 is 4714527627777.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58918690660 + ... + 58918691979.

It is an arithmetic number, because the mean of its divisors is an integer number (4949170070880).

Almost surely, 2^{77772672541740} is an apocalyptic number.

It is an amenable number.

77772672541740 is an abundant number, since it is smaller than the sum of its proper divisors (159787490860500).

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

77772672541740 is a wasteful number, since it uses less digits than its factorization.

77772672541740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117837382662 (or 117837382660 counting only the distinct ones).

The product of its (nonzero) digits is 225886080, while the sum is 66.

The spelling of 77772672541740 in words is "seventy-seven trillion, seven hundred seventy-two billion, six hundred seventy-two million, five hundred forty-one thousand, seven hundred forty".