77532440416 has 24 divisors (see below), whose sum is σ = 152650544760. Its totient is φ = 38764048128.

The previous prime is 77532440369. The next prime is 77532440423. The reversal of 77532440416 is 61404423577.

It is a super-2 number, since 2×77532440416² (a number of 23 digits) contains 22 as substring.

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, 619140 + ... + 733756.

It is an arithmetic number, because the mean of its divisors is an integer number (6360439365).

Almost surely, 2^77532440416 is an apocalyptic number.

It is an amenable number.

77532440416 is a deficient number, since it is larger than the sum of its proper divisors (75118104344).

77532440416 is a wasteful number, since it uses less digits than its factorization.

77532440416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135766 (or 135758 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 43.

The spelling of 77532440416 in words is "seventy-seven billion, five hundred thirty-two million, four hundred forty thousand, four hundred sixteen".