2145626401774 has 8 divisors (see below), whose sum is σ = 3232493924760. Its totient is φ = 1068128426856.

The previous prime is 2145626401769. The next prime is 2145626401777. The reversal of 2145626401774 is 4771046265412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145626401777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2342386444 + ... + 2342387359.

It is an arithmetic number, because the mean of its divisors is an integer number (404061740595).

Almost surely, 2^{2145626401774} is an apocalyptic number.

2145626401774 is a deficient number, since it is larger than the sum of its proper divisors (1086867522986).

2145626401774 is a wasteful number, since it uses less digits than its factorization.

2145626401774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4684774034.

The product of its (nonzero) digits is 2257920, while the sum is 49.

The spelling of 2145626401774 in words is "two trillion, one hundred forty-five billion, six hundred twenty-six million, four hundred one thousand, seven hundred seventy-four".