1077455638872 has 96 divisors (see below), whose sum is σ = 3027850250880. Its totient is φ = 345765335040.

The previous prime is 1077455638829. The next prime is 1077455638877. The reversal of 1077455638872 is 2788365547701.

It is a happy number.

1077455638872 is a `hidden beast` number, since 1 + 0 + 7 + 7 + 4 + 556 + 3 + 8 + 8 + 72 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1077455638877) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 819823 + ... + 1681374.

It is an arithmetic number, because the mean of its divisors is an integer number (31540106780).

Almost surely, 2^{1077455638872} is an apocalyptic number.

1077455638872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1077455638872 is an abundant number, since it is smaller than the sum of its proper divisors (1950394612008).

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

1077455638872 is a wasteful number, since it uses less digits than its factorization.

1077455638872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2501433 (or 2501426 counting only the distinct ones).

The product of its (nonzero) digits is 79027200, while the sum is 63.

The spelling of 1077455638872 in words is "one trillion, seventy-seven billion, four hundred fifty-five million, six hundred thirty-eight thousand, eight hundred seventy-two".