78826642120534 has 32 divisors (see below), whose sum is σ = 152171414710272. Its totient is φ = 29720979432000.

The previous prime is 78826642120469. The next prime is 78826642120573. The reversal of 78826642120534 is 43502124662887.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8255822847 + ... + 8255832394.

It is an arithmetic number, because the mean of its divisors is an integer number (4755356709696).

Almost surely, 2^{78826642120534} is an apocalyptic number.

78826642120534 is a deficient number, since it is larger than the sum of its proper divisors (73344772589738).

78826642120534 is a wasteful number, since it uses less digits than its factorization.

78826642120534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16511655292.

The product of its (nonzero) digits is 30965760, while the sum is 58.

The spelling of 78826642120534 in words is "seventy-eight trillion, eight hundred twenty-six billion, six hundred forty-two million, one hundred twenty thousand, five hundred thirty-four".