28970761715 has 12 divisors (see below), whose sum is σ = 40440818736. Its totient is φ = 19865665008.

The previous prime is 28970761711. The next prime is 28970761741. The reversal of 28970761715 is 51716707982.

It is not a de Polignac number, because 28970761715 - 2² = 28970761711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28970761711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59123759 + ... + 59124248.

It is an arithmetic number, because the mean of its divisors is an integer number (3370068228).

Almost surely, 2^28970761715 is an apocalyptic number.

28970761715 is a deficient number, since it is larger than the sum of its proper divisors (11470057021).

28970761715 is a wasteful number, since it uses less digits than its factorization.

28970761715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118248026 (or 118248019 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 53.

The spelling of 28970761715 in words is "twenty-eight billion, nine hundred seventy million, seven hundred sixty-one thousand, seven hundred fifteen".