28746122480 has 40 divisors (see below), whose sum is σ = 66885574704. Its totient is φ = 11489702400.

The previous prime is 28746122459. The next prime is 28746122497. The reversal of 28746122480 is 8422164782.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×28746122480² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30326 + ... + 241685.

Almost surely, 2^28746122480 is an apocalyptic number.

28746122480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28746122480 is an abundant number, since it is smaller than the sum of its proper divisors (38139452224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28746122480 is a wasteful number, since it uses less digits than its factorization.

28746122480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273345 (or 273339 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 44.

The spelling of 28746122480 in words is "twenty-eight billion, seven hundred forty-six million, one hundred twenty-two thousand, four hundred eighty".