28737294416 has 10 divisors (see below), whose sum is σ = 55678507962. Its totient is φ = 14368647200.

The previous prime is 28737294371. The next prime is 28737294437. The reversal of 28737294416 is 61449273782.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 24705552400 + 4031742016 = 157180^2 + 63496^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 898040435 + ... + 898040466.

Almost surely, 2^28737294416 is an apocalyptic number.

It is an amenable number.

28737294416 is a deficient number, since it is larger than the sum of its proper divisors (26941213546).

28737294416 is a wasteful number, since it uses less digits than its factorization.

28737294416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796080909 (or 1796080903 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 53.

The spelling of 28737294416 in words is "twenty-eight billion, seven hundred thirty-seven million, two hundred ninety-four thousand, four hundred sixteen".