1974320090445 has 16 divisors (see below), whose sum is σ = 3226123042560. Its totient is φ = 1030567082304.

The previous prime is 1974320090441. The next prime is 1974320090447. The reversal of 1974320090445 is 5440900234791.

It is not a de Polignac number, because 1974320090445 - 2² = 1974320090441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1974320090394 and 1974320090403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1974320090441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1400226310 + ... + 1400227719.

It is an arithmetic number, because the mean of its divisors is an integer number (201632690160).

Almost surely, 2^{1974320090445} is an apocalyptic number.

1974320090445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1974320090445 is a deficient number, since it is larger than the sum of its proper divisors (1251802952115).

1974320090445 is a wasteful number, since it uses less digits than its factorization.

1974320090445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800454084.

The product of its (nonzero) digits is 1088640, while the sum is 48.

The spelling of 1974320090445 in words is "one trillion, nine hundred seventy-four billion, three hundred twenty million, ninety thousand, four hundred forty-five".