42764478515 has 8 divisors (see below), whose sum is σ = 55982590128. Its totient is φ = 31101438880.

The previous prime is 42764478499. The next prime is 42764478521. The reversal of 42764478515 is 51587446724.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42764478515 - 2⁴ = 42764478499 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388767932 + ... + 388768041.

It is an arithmetic number, because the mean of its divisors is an integer number (6997823766).

Almost surely, 2^42764478515 is an apocalyptic number.

42764478515 is a deficient number, since it is larger than the sum of its proper divisors (13218111613).

42764478515 is a wasteful number, since it uses less digits than its factorization.

42764478515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777535989.

The product of its digits is 7526400, while the sum is 53.

The spelling of 42764478515 in words is "forty-two billion, seven hundred sixty-four million, four hundred seventy-eight thousand, five hundred fifteen".