2722145796890 has 16 divisors (see below), whose sum is σ = 5276774929608. Its totient is φ = 1005099986496.

The previous prime is 2722145796779. The next prime is 2722145796917. The reversal of 2722145796890 is 986975412272.

It can be written as a sum of positive squares in 4 ways, for example, as 1607349802969 + 1114795993921 = 1267813^2 + 1055839^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10469791397 + ... + 10469791656.

Almost surely, 2^{2722145796890} is an apocalyptic number.

2722145796890 is a deficient number, since it is larger than the sum of its proper divisors (2554629132718).

2722145796890 is a wasteful number, since it uses less digits than its factorization.

2722145796890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20939583073.

The product of its (nonzero) digits is 30481920, while the sum is 62.

The spelling of 2722145796890 in words is "two trillion, seven hundred twenty-two billion, one hundred forty-five million, seven hundred ninety-six thousand, eight hundred ninety".