78463680 has 168 divisors, whose sum is σ = 261414768. Its totient is φ = 19924992.

The previous prime is 78463661. The next prime is 78463739. The reversal of 78463680 is 8636487.

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, 1669417 + ... + 1669463.

Almost surely, 2^78463680 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 78463680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130707384).

78463680 is an abundant number, since it is smaller than the sum of its proper divisors (182951088).

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

78463680 is a wasteful number, since it uses less digits than its factorization.

78463680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 78463680 is about 8857.9726800211. The cubic root of 78463680 is about 428.1108397824.

The spelling of 78463680 in words is "seventy-eight million, four hundred sixty-three thousand, six hundred eighty".