2157445570250 has 32 divisors (see below), whose sum is σ = 4062922246656. Its totient is φ = 857810677200.

The previous prime is 2157445570219. The next prime is 2157445570261. The reversal of 2157445570250 is 520755447512.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2157445570195 and 2157445570204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25795922 + ... + 25879421.

It is an arithmetic number, because the mean of its divisors is an integer number (126966320208).

Almost surely, 2^{2157445570250} is an apocalyptic number.

2157445570250 is a deficient number, since it is larger than the sum of its proper divisors (1905476676406).

2157445570250 is a wasteful number, since it uses less digits than its factorization.

2157445570250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51675527 (or 51675517 counting only the distinct ones).

The product of its (nonzero) digits is 1960000, while the sum is 47.

The spelling of 2157445570250 in words is "two trillion, one hundred fifty-seven billion, four hundred forty-five million, five hundred seventy thousand, two hundred fifty".