78407061662 has 8 divisors (see below), whose sum is σ = 117619749000. Its totient is φ = 39200478664.

The previous prime is 78407061647. The next prime is 78407061679. The reversal of 78407061662 is 26616070487.

It is a happy number.

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

It is a super-2 number, since 2×78407061662² (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, 1493837 + ... + 1545432.

It is an arithmetic number, because the mean of its divisors is an integer number (14702468625).

Almost surely, 2^78407061662 is an apocalyptic number.

78407061662 is a deficient number, since it is larger than the sum of its proper divisors (39212687338).

78407061662 is a wasteful number, since it uses less digits than its factorization.

78407061662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052170.

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 78407061662 in words is "seventy-eight billion, four hundred seven million, sixty-one thousand, six hundred sixty-two".