1945262971400 has 48 divisors (see below), whose sum is σ = 5168841613440. Its totient is φ = 666947304000.

The previous prime is 1945262971339. The next prime is 1945262971427. The reversal of 1945262971400 is 41792625491.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 694735376 + ... + 694738175.

It is an arithmetic number, because the mean of its divisors is an integer number (107684200280).

Almost surely, 2^{1945262971400} is an apocalyptic number.

1945262971400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1945262971400 is an abundant number, since it is smaller than the sum of its proper divisors (3223578642040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1945262971400 is a wasteful number, since it uses less digits than its factorization.

1945262971400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1389473574 (or 1389473565 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 1945262971400 in words is "one trillion, nine hundred forty-five billion, two hundred sixty-two million, nine hundred seventy-one thousand, four hundred".