45878717881 has 8 divisors (see below), whose sum is σ = 46646943560. Its totient is φ = 45116517888.

The previous prime is 45878717813. The next prime is 45878717909. The reversal of 45878717881 is 18871787854.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1753934400 + 44124783481 = 41880^2 + 210059^2 .

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 45878717881 - 2¹⁹ = 45878193593 is a prime.

It is a super-2 number, since 2×45878717881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45878717281) 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, 1491066 + ... + 1521523.

It is an arithmetic number, because the mean of its divisors is an integer number (5830867945).

Almost surely, 2^45878717881 is an apocalyptic number.

It is an amenable number.

45878717881 is a deficient number, since it is larger than the sum of its proper divisors (768225679).

45878717881 is a wasteful number, since it uses less digits than its factorization.

45878717881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3012843.

The product of its digits is 28098560, while the sum is 64.

The spelling of 45878717881 in words is "forty-five billion, eight hundred seventy-eight million, seven hundred seventeen thousand, eight hundred eighty-one".