77043076617372 has 96 divisors (see below), whose sum is σ = 192169785636864. Its totient is φ = 23963898816000.

The previous prime is 77043076617343. The next prime is 77043076617373. The reversal of 77043076617372 is 27371667034077.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77043076617373) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198413158 + ... + 198801074.

It is an arithmetic number, because the mean of its divisors is an integer number (2001768600384).

Almost surely, 2^{77043076617372} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 77043076617372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96084892818432).

77043076617372 is an abundant number, since it is smaller than the sum of its proper divisors (115126709019492).

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

77043076617372 is a wasteful number, since it uses less digits than its factorization.

77043076617372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405539 (or 405537 counting only the distinct ones).

The product of its (nonzero) digits is 43563744, while the sum is 60.

The spelling of 77043076617372 in words is "seventy-seven trillion, forty-three billion, seventy-six million, six hundred seventeen thousand, three hundred seventy-two".