46538016381 has 6 divisors (see below), whose sum is σ = 67221579230. Its totient is φ = 31025344248.

The previous prime is 46538016373. The next prime is 46538016397. The reversal of 46538016381 is 18361083564.

46538016381 is a `hidden beast` number, since 4 + 6 + 5 + 3 + 8 + 0 + 1 + 638 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 28557620100 + 17980396281 = 168990^2 + 134091^2 .

It is not a de Polignac number, because 46538016381 - 2³ = 46538016373 is a prime.

It is a super-2 number, since 2×46538016381² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46538016781) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2585445346 + ... + 2585445363.

Almost surely, 2^46538016381 is an apocalyptic number.

It is an amenable number.

46538016381 is a deficient number, since it is larger than the sum of its proper divisors (20683562849).

46538016381 is a wasteful number, since it uses less digits than its factorization.

46538016381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5170890715 (or 5170890712 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 46538016381 in words is "forty-six billion, five hundred thirty-eight million, sixteen thousand, three hundred eighty-one".