545331697451 has 4 divisors (see below), whose sum is σ = 545696957952. Its totient is φ = 544966436952.

The previous prime is 545331697447. The next prime is 545331697481. The reversal of 545331697451 is 154796133545.

It is a happy number.

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 545331697451 - 2² = 545331697447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545331697393 and 545331697402.

It is not an unprimeable number, because it can be changed into a prime (545331697481) 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, 182628011 + ... + 182630996.

It is an arithmetic number, because the mean of its divisors is an integer number (136424239488).

Almost surely, 2^545331697451 is an apocalyptic number.

545331697451 is a deficient number, since it is larger than the sum of its proper divisors (365260501).

545331697451 is a wasteful number, since it uses less digits than its factorization.

545331697451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365260500.

The product of its digits is 6804000, while the sum is 53.

The spelling of 545331697451 in words is "five hundred forty-five billion, three hundred thirty-one million, six hundred ninety-seven thousand, four hundred fifty-one".