73777206672 has 120 divisors (see below), whose sum is σ = 230591880064. Its totient is φ = 22700663424.

The previous prime is 73777206641. The next prime is 73777206703. The reversal of 73777206672 is 27660277737.

73777206672 is a `hidden beast` number, since 7 + 377 + 7 + 206 + 67 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (73777206641) and next prime (73777206703).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 679288 + ... + 780375.

Almost surely, 2^73777206672 is an apocalyptic number.

73777206672 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

73777206672 is an abundant number, since it is smaller than the sum of its proper divisors (156814673392).

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

73777206672 is a wasteful number, since it uses less digits than its factorization.

73777206672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459699 (or 1459681 counting only the distinct ones).

The product of its (nonzero) digits is 7260624, while the sum is 54.

The spelling of 73777206672 in words is "seventy-three billion, seven hundred seventy-seven million, two hundred six thousand, six hundred seventy-two".