63146681237 has 8 divisors (see below), whose sum is σ = 68491953432. Its totient is φ = 57982604800.

The previous prime is 63146681189. The next prime is 63146681249. The reversal of 63146681237 is 73218664136.

It can be written as a sum of positive squares in 4 ways, for example, as 118570321 + 63028110916 = 10889^2 + 251054^2 .

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 63146681237 - 2⁶ = 63146681173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63146681191 and 63146681200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63146681137) 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, 45298214 + ... + 45299607.

It is an arithmetic number, because the mean of its divisors is an integer number (8561494179).

Almost surely, 2^63146681237 is an apocalyptic number.

It is an amenable number.

63146681237 is a deficient number, since it is larger than the sum of its proper divisors (5345272195).

63146681237 is a wasteful number, since it uses less digits than its factorization.

63146681237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90597879.

The product of its digits is 870912, while the sum is 47.

The spelling of 63146681237 in words is "sixty-three billion, one hundred forty-six million, six hundred eighty-one thousand, two hundred thirty-seven".