45511447951 has 4 divisors (see below), whose sum is σ = 45513446400. Its totient is φ = 45509449504.

The previous prime is 45511447937. The next prime is 45511447957. The reversal of 45511447951 is 15974411554.

45511447951 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45511447951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45511447957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 964666 + ... + 1010743.

It is an arithmetic number, because the mean of its divisors is an integer number (11378361600).

Almost surely, 2^45511447951 is an apocalyptic number.

45511447951 is a deficient number, since it is larger than the sum of its proper divisors (1998449).

45511447951 is a wasteful number, since it uses less digits than its factorization.

45511447951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998448.

The product of its digits is 504000, while the sum is 46.

The spelling of 45511447951 in words is "forty-five billion, five hundred eleven million, four hundred forty-seven thousand, nine hundred fifty-one".