28701983835 has 48 divisors (see below), whose sum is σ = 56891337984. Its totient is φ = 13113043776.

The previous prime is 28701983831. The next prime is 28701983837. The reversal of 28701983835 is 53838910782.

28701983835 is a `hidden beast` number, since 2 + 8 + 70 + 198 + 383 + 5 = 666.

It is not a de Polignac number, because 28701983835 - 2² = 28701983831 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28701983831) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 516304 + ... + 569186.

It is an arithmetic number, because the mean of its divisors is an integer number (1185236208).

Almost surely, 2^28701983835 is an apocalyptic number.

28701983835 is a deficient number, since it is larger than the sum of its proper divisors (28189354149).

28701983835 is a wasteful number, since it uses less digits than its factorization.

28701983835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54624 (or 54621 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 28701983835 in words is "twenty-eight billion, seven hundred one million, nine hundred eighty-three thousand, eight hundred thirty-five".