715081479821 has 4 divisors (see below), whose sum is σ = 752717347200. Its totient is φ = 677445612444.

The previous prime is 715081479811. The next prime is 715081479899. The reversal of 715081479821 is 128974180517.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 715081479821 - 2¹⁸ = 715081217677 is a prime.

It is a super-2 number, since 2×715081479821² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (715081479811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18817933661 + ... + 18817933698.

It is an arithmetic number, because the mean of its divisors is an integer number (188179336800).

Almost surely, 2^715081479821 is an apocalyptic number.

It is an amenable number.

715081479821 is a deficient number, since it is larger than the sum of its proper divisors (37635867379).

715081479821 is a wasteful number, since it uses less digits than its factorization.

715081479821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37635867378.

The product of its (nonzero) digits is 1128960, while the sum is 53.

The spelling of 715081479821 in words is "seven hundred fifteen billion, eighty-one million, four hundred seventy-nine thousand, eight hundred twenty-one".