45739814381 has 2 divisors, whose sum is σ = 45739814382. Its totient is φ = 45739814380.

The previous prime is 45739814357. The next prime is 45739814479. The reversal of 45739814381 is 18341893754.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42894552100 + 2845262281 = 207110^2 + 53341^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45739814381 is a prime.

It is a super-2 number, since 2×45739814381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45739819381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22869907190 + 22869907191.

It is an arithmetic number, because the mean of its divisors is an integer number (22869907191).

Almost surely, 2^45739814381 is an apocalyptic number.

It is an amenable number.

45739814381 is a deficient number, since it is larger than the sum of its proper divisors (1).

45739814381 is an equidigital number, since it uses as much as digits as its factorization.

45739814381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 53.

The spelling of 45739814381 in words is "forty-five billion, seven hundred thirty-nine million, eight hundred fourteen thousand, three hundred eighty-one".