78032109252135 has 64 divisors (see below), whose sum is σ = 136497169833984. Its totient is φ = 37895200972800.

The previous prime is 78032109252107. The next prime is 78032109252143. The reversal of 78032109252135 is 53125290123087.

It is not a de Polignac number, because 78032109252135 - 2⁷ = 78032109252007 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27674767 + ... + 30363743.

It is an arithmetic number, because the mean of its divisors is an integer number (2132768278656).

Almost surely, 2^{78032109252135} is an apocalyptic number.

78032109252135 is a deficient number, since it is larger than the sum of its proper divisors (58465060581849).

78032109252135 is a wasteful number, since it uses less digits than its factorization.

78032109252135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692704.

The product of its (nonzero) digits is 907200, while the sum is 48.

The spelling of 78032109252135 in words is "seventy-eight trillion, thirty-two billion, one hundred nine million, two hundred fifty-two thousand, one hundred thirty-five".