63898130437 has 8 divisors (see below), whose sum is σ = 64366047000. Its totient is φ = 63430735104.

The previous prime is 63898130411. The next prime is 63898130441. The reversal of 63898130437 is 73403189836.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 595067236 + 63303063201 = 24394^2 + 251601^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 63898130437 - 2¹¹ = 63898128389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63898130237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117489 + ... + 376297.

It is an arithmetic number, because the mean of its divisors is an integer number (8045755875).

Almost surely, 2^63898130437 is an apocalyptic number.

It is an amenable number.

63898130437 is a deficient number, since it is larger than the sum of its proper divisors (467916563).

63898130437 is a wasteful number, since it uses less digits than its factorization.

63898130437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260615.

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 63898130437 in words is "sixty-three billion, eight hundred ninety-eight million, one hundred thirty thousand, four hundred thirty-seven".