1974219025601 has 2 divisors, whose sum is σ = 1974219025602. Its totient is φ = 1974219025600.

The previous prime is 1974219025477. The next prime is 1974219025637. The reversal of 1974219025601 is 1065209124791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1672405036225 + 301813989376 = 1293215^2 + 549376^2 .

It is a cyclic number.

It is not a de Polignac number, because 1974219025601 - 2¹⁸ = 1974218763457 is a prime.

It is a super-2 number, since 2×1974219025601² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1974219027601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 987109512800 + 987109512801.

It is an arithmetic number, because the mean of its divisors is an integer number (987109512801).

Almost surely, 2^{1974219025601} is an apocalyptic number.

It is an amenable number.

1974219025601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1974219025601 is an equidigital number, since it uses as much as digits as its factorization.

1974219025601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 47.

The spelling of 1974219025601 in words is "one trillion, nine hundred seventy-four billion, two hundred nineteen million, twenty-five thousand, six hundred one".