2145226432474 has 24 divisors (see below), whose sum is σ = 3351247980444. Its totient is φ = 1029296822400.

The previous prime is 2145226432471. The next prime is 2145226432523. The reversal of 2145226432474 is 4742346225412.

It can be written as a sum of positive squares in 6 ways, for example, as 154404201249 + 1990822231225 = 392943^2 + 1410965^2 .

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (2145226432471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3210237 + ... + 3820480.

Almost surely, 2^{2145226432474} is an apocalyptic number.

2145226432474 is a deficient number, since it is larger than the sum of its proper divisors (1206021547970).

2145226432474 is an equidigital number, since it uses as much as digits as its factorization.

2145226432474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7030882 (or 7030821 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 46.

The spelling of 2145226432474 in words is "two trillion, one hundred forty-five billion, two hundred twenty-six million, four hundred thirty-two thousand, four hundred seventy-four".