28923311402 has 8 divisors (see below), whose sum is σ = 43390647300. Its totient is φ = 14459762304.

The previous prime is 28923311387. The next prime is 28923311423. The reversal of 28923311402 is 20411332982.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 28913941681 + 9369721 = 170041^2 + 3061^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 927527 + ... + 958202.

Almost surely, 2^28923311402 is an apocalyptic number.

28923311402 is a deficient number, since it is larger than the sum of its proper divisors (14467335898).

28923311402 is a wasteful number, since it uses less digits than its factorization.

28923311402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1893400.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 28923311402 in words is "twenty-eight billion, nine hundred twenty-three million, three hundred eleven thousand, four hundred two".