28767623684 has 6 divisors (see below), whose sum is σ = 50343341454. Its totient is φ = 14383811840.

The previous prime is 28767623659. The next prime is 28767623699. The reversal of 28767623684 is 48632676782.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 27532101184 + 1235522500 = 165928^2 + 35150^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3595952957 + ... + 3595952964.

It is an arithmetic number, because the mean of its divisors is an integer number (8390556909).

Almost surely, 2^28767623684 is an apocalyptic number.

It is an amenable number.

28767623684 is a deficient number, since it is larger than the sum of its proper divisors (21575717770).

28767623684 is a wasteful number, since it uses less digits than its factorization.

28767623684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7191905925 (or 7191905923 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 59.

The spelling of 28767623684 in words is "twenty-eight billion, seven hundred sixty-seven million, six hundred twenty-three thousand, six hundred eighty-four".