1045821172954 has 8 divisors (see below), whose sum is σ = 1568885874228. Its totient is φ = 522859214880.

The previous prime is 1045821172861. The next prime is 1045821172997. The reversal of 1045821172954 is 4592711285401.

It can be written as a sum of positive squares in 2 ways, for example, as 1030279810729 + 15541362225 = 1015027^2 + 124665^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1045821172954² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1045821172898 and 1045821172907.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25660347 + ... + 25701070.

Almost surely, 2^{1045821172954} is an apocalyptic number.

1045821172954 is a deficient number, since it is larger than the sum of its proper divisors (523064701274).

1045821172954 is a wasteful number, since it uses less digits than its factorization.

1045821172954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51371600.

The product of its (nonzero) digits is 806400, while the sum is 49.

The spelling of 1045821172954 in words is "one trillion, forty-five billion, eight hundred twenty-one million, one hundred seventy-two thousand, nine hundred fifty-four".