42921749630 has 16 divisors (see below), whose sum is σ = 77338244880. Its totient is φ = 17151123072.

The previous prime is 42921749623. The next prime is 42921749653. The reversal of 42921749630 is 3694712924.

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, 2186840 + ... + 2206379.

It is an arithmetic number, because the mean of its divisors is an integer number (4833640305).

Almost surely, 2^42921749630 is an apocalyptic number.

42921749630 is a deficient number, since it is larger than the sum of its proper divisors (34416495250).

42921749630 is a wasteful number, since it uses less digits than its factorization.

42921749630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4394203.

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 42921749630 in words is "forty-two billion, nine hundred twenty-one million, seven hundred forty-nine thousand, six hundred thirty".