545918272351 has 4 divisors (see below), whose sum is σ = 545924619304. Its totient is φ = 545911925400.

The previous prime is 545918272301. The next prime is 545918272363. The reversal of 545918272351 is 153272819545.

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

It is a 4-Lehmer number, since φ(545918272351) divides (545918272351-1)⁴.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545918272351 is a prime.

It is a super-2 number, since 2×545918272351² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545918272301) 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, 3042660 + ... + 3217081.

It is an arithmetic number, because the mean of its divisors is an integer number (136481154826).

Almost surely, 2^545918272351 is an apocalyptic number.

545918272351 is the 330430-th centered decagonal number.

545918272351 is a deficient number, since it is larger than the sum of its proper divisors (6346953).

545918272351 is an equidigital number, since it uses as much as digits as its factorization.

545918272351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6346952.

The product of its digits is 3024000, while the sum is 52.

The spelling of 545918272351 in words is "five hundred forty-five billion, nine hundred eighteen million, two hundred seventy-two thousand, three hundred fifty-one".