45040342644 has 36 divisors (see below), whose sum is σ = 124202158080. Its totient is φ = 13648588560.

The previous prime is 45040342621. The next prime is 45040342667. The reversal of 45040342644 is 44624304054.

45040342644 is a `hidden beast` number, since 4 + 5 + 0 + 4 + 0 + 3 + 4 + 2 + 644 = 666.

It is an interprime number because it is at equal distance from previous prime (45040342621) and next prime (45040342667).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 45040342599 and 45040342608.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 56868724 + ... + 56869515.

Almost surely, 2^45040342644 is an apocalyptic number.

45040342644 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

45040342644 is an abundant number, since it is smaller than the sum of its proper divisors (79161815436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45040342644 is a wasteful number, since it uses less digits than its factorization.

45040342644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113738260 (or 113738255 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 36.

Adding to 45040342644 its reverse (44624304054), we get a palindrome (89664646698).

The spelling of 45040342644 in words is "forty-five billion, forty million, three hundred forty-two thousand, six hundred forty-four".