45132513621 has 16 divisors (see below), whose sum is σ = 65315948544. Its totient is φ = 27555159744.

The previous prime is 45132513599. The next prime is 45132513737. The reversal of 45132513621 is 12631523154.

It is not a de Polignac number, because 45132513621 - 2¹⁵ = 45132480853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45132513221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4551126 + ... + 4561031.

It is an arithmetic number, because the mean of its divisors is an integer number (4082246784).

Almost surely, 2^45132513621 is an apocalyptic number.

It is an amenable number.

45132513621 is a deficient number, since it is larger than the sum of its proper divisors (20183434923).

45132513621 is a wasteful number, since it uses less digits than its factorization.

45132513621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9112300.

The product of its digits is 21600, while the sum is 33.

The spelling of 45132513621 in words is "forty-five billion, one hundred thirty-two million, five hundred thirteen thousand, six hundred twenty-one".