28347622749630 has 320 divisors, whose sum is σ = 77833759880448. Its totient is φ = 7401311884800.

The previous prime is 28347622749629. The next prime is 28347622749683. The reversal of 28347622749630 is 3694722674382.

28347622749630 is a `hidden beast` number, since 2 + 8 + 3 + 476 + 2 + 2 + 74 + 96 + 3 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 13985012677 + ... + 13985014703.

Almost surely, 2^{28347622749630} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28347622749630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38916879940224).

28347622749630 is an abundant number, since it is smaller than the sum of its proper divisors (49486137130818).

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

28347622749630 is a wasteful number, since it uses less digits than its factorization.

28347622749630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3733 (or 3724 counting only the distinct ones).

The product of its (nonzero) digits is 146313216, while the sum is 63.

The spelling of 28347622749630 in words is "twenty-eight trillion, three hundred forty-seven billion, six hundred twenty-two million, seven hundred forty-nine thousand, six hundred thirty".