76720742301015 has 24 divisors (see below), whose sum is σ = 133407484613520. Its totient is φ = 40787001650304.

The previous prime is 76720742300999. The next prime is 76720742301067. The reversal of 76720742301015 is 51010324702767.

76720742301015 is a `hidden beast` number, since 7 + 6 + 7 + 207 + 423 + 0 + 1 + 0 + 15 = 666.

It is not a de Polignac number, because 76720742301015 - 2⁴ = 76720742300999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2723476945 + ... + 2723505114.

It is an arithmetic number, because the mean of its divisors is an integer number (5558645192230).

Almost surely, 2^{76720742301015} is an apocalyptic number.

76720742301015 is a deficient number, since it is larger than the sum of its proper divisors (56686742312505).

76720742301015 is a wasteful number, since it uses less digits than its factorization.

76720742301015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5446982383 (or 5446982380 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The spelling of 76720742301015 in words is "seventy-six trillion, seven hundred twenty billion, seven hundred forty-two million, three hundred one thousand, fifteen".