77672710142 has 16 divisors (see below), whose sum is σ = 121587207840. Its totient is φ = 37143988992.

The previous prime is 77672710121. The next prime is 77672710147. The reversal of 77672710142 is 24101727677.

It is a junction number, because it is equal to n+sod(n) for n = 77672710093 and 77672710102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77672710147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392534 + ... + 556262.

It is an arithmetic number, because the mean of its divisors is an integer number (7599200490).

Almost surely, 2^77672710142 is an apocalyptic number.

77672710142 is a deficient number, since it is larger than the sum of its proper divisors (43914497698).

77672710142 is a wasteful number, since it uses less digits than its factorization.

77672710142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174067.

The product of its (nonzero) digits is 230496, while the sum is 44.

The spelling of 77672710142 in words is "seventy-seven billion, six hundred seventy-two million, seven hundred ten thousand, one hundred forty-two".