53747421638 has 8 divisors (see below), whose sum is σ = 80624192880. Its totient is φ = 26872690680.

The previous prime is 53747421617. The next prime is 53747421659. The reversal of 53747421638 is 83612474735.

It is an interprime number because it is at equal distance from previous prime (53747421617) and next prime (53747421659).

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

It is a congruent number.

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, 442418 + ... + 550661.

It is an arithmetic number, because the mean of its divisors is an integer number (10078024110).

Almost surely, 2^53747421638 is an apocalyptic number.

53747421638 is a deficient number, since it is larger than the sum of its proper divisors (26876771242).

53747421638 is a wasteful number, since it uses less digits than its factorization.

53747421638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020142.

The product of its digits is 3386880, while the sum is 50.

The spelling of 53747421638 in words is "fifty-three billion, seven hundred forty-seven million, four hundred twenty-one thousand, six hundred thirty-eight".