77514662740 has 12 divisors (see below), whose sum is σ = 162780791796. Its totient is φ = 31005865088.

The previous prime is 77514662711. The next prime is 77514662749. The reversal of 77514662740 is 4726641577.

It can be written as a sum of positive squares in 2 ways, for example, as 35001171396 + 42513491344 = 187086^2 + 206188^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77514662749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1937866549 + ... + 1937866588.

It is an arithmetic number, because the mean of its divisors is an integer number (13565065983).

Almost surely, 2^77514662740 is an apocalyptic number.

It is an amenable number.

77514662740 is an abundant number, since it is smaller than the sum of its proper divisors (85266129056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77514662740 is a wasteful number, since it uses less digits than its factorization.

77514662740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3875733146 (or 3875733144 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 49.

The spelling of 77514662740 in words is "seventy-seven billion, five hundred fourteen million, six hundred sixty-two thousand, seven hundred forty".