64772457480 has 48 divisors (see below), whose sum is σ = 210510487980. Its totient is φ = 17272655232.

The previous prime is 64772457479. The next prime is 64772457481. The reversal of 64772457480 is 8475427746.

64772457480 is a `hidden beast` number, since 6 + 47 + 7 + 24 + 574 + 8 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (64772457479) and next prime (64772457481).

It can be written as a sum of positive squares in 2 ways, for example, as 52238759364 + 12533698116 = 228558^2 + 111954^2 .

It is not an unprimeable number, because it can be changed into a prime (64772457481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89961387 + ... + 89962106.

Almost surely, 2^64772457480 is an apocalyptic number.

64772457480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64772457480 is an abundant number, since it is smaller than the sum of its proper divisors (145738030500).

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

64772457480 is a wasteful number, since it uses less digits than its factorization.

64772457480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179923510 (or 179923503 counting only the distinct ones).

The product of its (nonzero) digits is 10536960, while the sum is 54.

The spelling of 64772457480 in words is "sixty-four billion, seven hundred seventy-two million, four hundred fifty-seven thousand, four hundred eighty".