45981640435 has 4 divisors (see below), whose sum is σ = 55177968528. Its totient is φ = 36785312344.

The previous prime is 45981640429. The next prime is 45981640499. The reversal of 45981640435 is 53404618954.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45981640435 - 2³ = 45981640427 is a prime.

It is a super-2 number, since 2×45981640435² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4598164039 + ... + 4598164048.

It is an arithmetic number, because the mean of its divisors is an integer number (13794492132).

Almost surely, 2^45981640435 is an apocalyptic number.

45981640435 is a deficient number, since it is larger than the sum of its proper divisors (9196328093).

45981640435 is an equidigital number, since it uses as much as digits as its factorization.

45981640435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9196328092.

The product of its (nonzero) digits is 2073600, while the sum is 49.

The spelling of 45981640435 in words is "forty-five billion, nine hundred eighty-one million, six hundred forty thousand, four hundred thirty-five".