78046543616 has 18 divisors (see below), whose sum is σ = 155788218432. Its totient is φ = 39023271680.

The previous prime is 78046543573. The next prime is 78046543621. The reversal of 78046543616 is 61634564087.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152434400 + ... + 152434911.

It is an arithmetic number, because the mean of its divisors is an integer number (8654901024).

Almost surely, 2^78046543616 is an apocalyptic number.

It is an amenable number.

78046543616 is a deficient number, since it is larger than the sum of its proper divisors (77741674816).

78046543616 is an equidigital number, since it uses as much as digits as its factorization.

78046543616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304869327 (or 304869313 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 50.

The spelling of 78046543616 in words is "seventy-eight billion, forty-six million, five hundred forty-three thousand, six hundred sixteen".