77198395348 has 24 divisors (see below), whose sum is σ = 136462193280. Its totient is φ = 38209351200.

The previous prime is 77198395291. The next prime is 77198395363. The reversal of 77198395348 is 84359389177.

It is a super-2 number, since 2×77198395348² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 77198395348.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2358865 + ... + 2391367.

It is an arithmetic number, because the mean of its divisors is an integer number (5685924720).

Almost surely, 2^77198395348 is an apocalyptic number.

It is an amenable number.

77198395348 is a deficient number, since it is larger than the sum of its proper divisors (59263797932).

77198395348 is a wasteful number, since it uses less digits than its factorization.

77198395348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38487 (or 38485 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 64.

The spelling of 77198395348 in words is "seventy-seven billion, one hundred ninety-eight million, three hundred ninety-five thousand, three hundred forty-eight".