78676625040 has 240 divisors, whose sum is σ = 265120620480. Its totient is φ = 19291883520.

The previous prime is 78676625033. The next prime is 78676625081. The reversal of 78676625040 is 4052667687.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×78676625040² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10907035 + ... + 10914245.

It is an arithmetic number, because the mean of its divisors is an integer number (1104669252).

Almost surely, 2^78676625040 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 78676625040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132560310240).

78676625040 is an abundant number, since it is smaller than the sum of its proper divisors (186443995440).

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

78676625040 is a wasteful number, since it uses less digits than its factorization.

78676625040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7522 (or 7503 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 78676625040 in words is "seventy-eight billion, six hundred seventy-six million, six hundred twenty-five thousand, forty".