78535741617051 has 8 divisors (see below), whose sum is σ = 104785027308624. Its totient is φ = 52321808501760.

The previous prime is 78535741617043. The next prime is 78535741617061. The reversal of 78535741617051 is 15071614753587.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78535741617051 - 2³ = 78535741617043 is a prime.

It is a super-2 number, since 2×78535741617051² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78535741617001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8838138886 + ... + 8838147771.

It is an arithmetic number, because the mean of its divisors is an integer number (13098128413578).

Almost surely, 2^{78535741617051} is an apocalyptic number.

78535741617051 is a deficient number, since it is larger than the sum of its proper divisors (26249285691573).

78535741617051 is a wasteful number, since it uses less digits than its factorization.

78535741617051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17676288141.

The product of its (nonzero) digits is 24696000, while the sum is 60.

The spelling of 78535741617051 in words is "seventy-eight trillion, five hundred thirty-five billion, seven hundred forty-one million, six hundred seventeen thousand, fifty-one".