77420370704092 has 12 divisors (see below), whose sum is σ = 145907621711656. Its totient is φ = 35732478786480.

The previous prime is 77420370704071. The next prime is 77420370704141. The reversal of 77420370704092 is 29040707302477.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (52), and also a Moran number because the ratio is a prime number: 1488853282771 = 77420370704092 / (7 + 7 + 4 + 2 + 0 + 3 + 7 + 0 + 7 + 0 + 4 + 0 + 9 + 2).

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, 744426641334 + ... + 744426641437.

Almost surely, 2^{77420370704092} is an apocalyptic number.

It is an amenable number.

77420370704092 is a deficient number, since it is larger than the sum of its proper divisors (68487251007564).

77420370704092 is a wasteful number, since it uses less digits than its factorization.

77420370704092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488853282788 (or 1488853282786 counting only the distinct ones).

The product of its (nonzero) digits is 4148928, while the sum is 52.

The spelling of 77420370704092 in words is "seventy-seven trillion, four hundred twenty billion, three hundred seventy million, seven hundred four thousand, ninety-two".