3670400373649 has 2 divisors, whose sum is σ = 3670400373650. Its totient is φ = 3670400373648.

The previous prime is 3670400373631. The next prime is 3670400373721. The reversal of 3670400373649 is 9463730040763.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2346043622400 + 1324356751249 = 1531680^2 + 1150807^2 .

It is a cyclic number.

It is not a de Polignac number, because 3670400373649 - 2²³ = 3670391985041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3670400373596 and 3670400373605.

It is not a weakly prime, because it can be changed into another prime (3670400373149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1835200186824 + 1835200186825.

It is an arithmetic number, because the mean of its divisors is an integer number (1835200186825).

Almost surely, 2^{3670400373649} is an apocalyptic number.

It is an amenable number.

3670400373649 is a deficient number, since it is larger than the sum of its proper divisors (1).

3670400373649 is an equidigital number, since it uses as much as digits as its factorization.

3670400373649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6858432, while the sum is 52.

The spelling of 3670400373649 in words is "three trillion, six hundred seventy billion, four hundred million, three hundred seventy-three thousand, six hundred forty-nine".