78146018926 has 8 divisors (see below), whose sum is σ = 117223258320. Its totient is φ = 39071599488.

The previous prime is 78146018849. The next prime is 78146018933. The reversal of 78146018926 is 62981064187.

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

It is a super-2 number, since 2×78146018926² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634291 + ... + 747406.

It is an arithmetic number, because the mean of its divisors is an integer number (14652907290).

Almost surely, 2^78146018926 is an apocalyptic number.

78146018926 is a deficient number, since it is larger than the sum of its proper divisors (39077239394).

78146018926 is a wasteful number, since it uses less digits than its factorization.

78146018926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409978.

The product of its (nonzero) digits is 1161216, while the sum is 52.

The spelling of 78146018926 in words is "seventy-eight billion, one hundred forty-six million, eighteen thousand, nine hundred twenty-six".