45444777515521 has 8 divisors (see below), whose sum is σ = 46447717607424. Its totient is φ = 44451917223840.

The previous prime is 45444777515509. The next prime is 45444777515551. The reversal of 45444777515521 is 12551577744454.

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 45444777515521 - 2⁴¹ = 43245754259969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45444777515521.

It is not an unprimeable number, because it can be changed into a prime (45444777515551) 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, 2519940940 + ... + 2519958973.

It is an arithmetic number, because the mean of its divisors is an integer number (5805964700928).

Almost surely, 2^{45444777515521} is an apocalyptic number.

It is an amenable number.

45444777515521 is a deficient number, since it is larger than the sum of its proper divisors (1002940091903).

45444777515521 is a wasteful number, since it uses less digits than its factorization.

45444777515521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5039900111.

The product of its digits is 109760000, while the sum is 61.

The spelling of 45444777515521 in words is "forty-five trillion, four hundred forty-four billion, seven hundred seventy-seven million, five hundred fifteen thousand, five hundred twenty-one".