28770479007 has 24 divisors (see below), whose sum is σ = 39910219440. Its totient is φ = 18413687040.

The previous prime is 28770478963. The next prime is 28770479009. The reversal of 28770479007 is 70097407782.

It is not a de Polignac number, because 28770479007 - 2¹⁸ = 28770216863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28770479009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2782407 + ... + 2792727.

It is an arithmetic number, because the mean of its divisors is an integer number (1662925810).

Almost surely, 2^28770479007 is an apocalyptic number.

28770479007 is a deficient number, since it is larger than the sum of its proper divisors (11139740433).

28770479007 is a wasteful number, since it uses less digits than its factorization.

28770479007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10711 (or 10532 counting only the distinct ones).

The product of its (nonzero) digits is 1382976, while the sum is 51.

The spelling of 28770479007 in words is "twenty-eight billion, seven hundred seventy million, four hundred seventy-nine thousand, seven".