78716851742 has 32 divisors (see below), whose sum is σ = 126125233920. Its totient is φ = 36764259840.

The previous prime is 78716851729. The next prime is 78716851753. The reversal of 78716851742 is 24715861787.

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, 11246588 + ... + 11253584.

It is an arithmetic number, because the mean of its divisors is an integer number (3941413560).

Almost surely, 2^78716851742 is an apocalyptic number.

78716851742 is a deficient number, since it is larger than the sum of its proper divisors (47408382178).

78716851742 is a wasteful number, since it uses less digits than its factorization.

78716851742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13316.

The product of its digits is 5268480, while the sum is 56.

The spelling of 78716851742 in words is "seventy-eight billion, seven hundred sixteen million, eight hundred fifty-one thousand, seven hundred forty-two".