28700978702 has 8 divisors (see below), whose sum is σ = 46965237912. Its totient is φ = 13045899400.

The previous prime is 28700978701. The next prime is 28700978707. The reversal of 28700978702 is 20787900782.

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

It is a super-3 number, since 3×28700978702³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28700978701) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 652294949 + ... + 652294992.

It is an arithmetic number, because the mean of its divisors is an integer number (5870654739).

Almost surely, 2^28700978702 is an apocalyptic number.

28700978702 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28700978702 is a deficient number, since it is larger than the sum of its proper divisors (18264259210).

28700978702 is a wasteful number, since it uses less digits than its factorization.

28700978702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304589954.

The product of its (nonzero) digits is 790272, while the sum is 50.

The spelling of 28700978702 in words is "twenty-eight billion, seven hundred million, nine hundred seventy-eight thousand, seven hundred two".