77463627480 has 160 divisors (see below), whose sum is σ = 261437972400. Its totient is φ = 20656757376.

The previous prime is 77463627463. The next prime is 77463627491. The reversal of 77463627480 is 8472636477.

77463627480 is a `hidden beast` number, since 7 + 7 + 4 + 6 + 3 + 627 + 4 + 8 + 0 = 666.

It is a super-2 number, since 2×77463627480² (a number of 23 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 738126 + ... + 836514.

Almost surely, 2^77463627480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77463627480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130718986200).

77463627480 is an abundant number, since it is smaller than the sum of its proper divisors (183974344920).

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

77463627480 is an frugal number, since it uses more digits than its factorization.

77463627480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98427 (or 98399 counting only the distinct ones).

The product of its (nonzero) digits is 9483264, while the sum is 54.

The spelling of 77463627480 in words is "seventy-seven billion, four hundred sixty-three million, six hundred twenty-seven thousand, four hundred eighty".