77541516 has 48 divisors (see below), whose sum is σ = 216501600. Its totient is φ = 23858496.

The previous prime is 77541481. The next prime is 77541523. The reversal of 77541516 is 61514577.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26211 + ... + 29018.

It is an arithmetic number, because the mean of its divisors is an integer number (4510450).

Almost surely, 2^77541516 is an apocalyptic number.

It is an amenable number.

77541516 is an abundant number, since it is smaller than the sum of its proper divisors (138960084).

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

77541516 is a wasteful number, since it uses less digits than its factorization.

77541516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55255 (or 55247 counting only the distinct ones).

The product of its digits is 29400, while the sum is 36.

The square root of 77541516 is about 8805.7660654823. The cubic root of 77541516 is about 426.4270662665.

The spelling of 77541516 in words is "seventy-seven million, five hundred forty-one thousand, five hundred sixteen".