77425409942 has 8 divisors (see below), whose sum is σ = 117729048216. Its totient is φ = 38182393872.

The previous prime is 77425409921. The next prime is 77425409969. The reversal of 77425409942 is 24990452477.

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

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, 265155368 + ... + 265155659.

It is an arithmetic number, because the mean of its divisors is an integer number (14716131027).

Almost surely, 2^77425409942 is an apocalyptic number.

77425409942 is a deficient number, since it is larger than the sum of its proper divisors (40303638274).

77425409942 is a wasteful number, since it uses less digits than its factorization.

77425409942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530311102.

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 77425409942 in words is "seventy-seven billion, four hundred twenty-five million, four hundred nine thousand, nine hundred forty-two".