45781243651 has 32 divisors (see below), whose sum is σ = 54718997760. Its totient is φ = 37751875200.

The previous prime is 45781243639. The next prime is 45781243691. The reversal of 45781243651 is 15634218754.

It is not a de Polignac number, because 45781243651 - 2¹⁵ = 45781210883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45781243621) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12934440 + ... + 12937978.

It is an arithmetic number, because the mean of its divisors is an integer number (1709968680).

Almost surely, 2^45781243651 is an apocalyptic number.

45781243651 is a deficient number, since it is larger than the sum of its proper divisors (8937754109).

45781243651 is a wasteful number, since it uses less digits than its factorization.

45781243651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5107.

The product of its digits is 806400, while the sum is 46.

The spelling of 45781243651 in words is "forty-five billion, seven hundred eighty-one million, two hundred forty-three thousand, six hundred fifty-one".