3746997993401 has 8 divisors (see below), whose sum is σ = 4133648818824. Its totient is φ = 3374407198080.

The previous prime is 3746997993379. The next prime is 3746997993437. The reversal of 3746997993401 is 1043997996473.

It can be written as a sum of positive squares in 4 ways, for example, as 200363664400 + 3546634329001 = 447620^2 + 1883251^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3746997993401 - 2³⁴ = 3729818124217 is a prime.

It is a super-2 number, since 2×3746997993401² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3746997993601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3515006966 + ... + 3515008031.

It is an arithmetic number, because the mean of its divisors is an integer number (516706102353).

Almost surely, 2^{3746997993401} is an apocalyptic number.

It is an amenable number.

3746997993401 is a deficient number, since it is larger than the sum of its proper divisors (386650825423).

3746997993401 is a wasteful number, since it uses less digits than its factorization.

3746997993401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7030015051.

The product of its (nonzero) digits is 277766496, while the sum is 71.

The spelling of 3746997993401 in words is "three trillion, seven hundred forty-six billion, nine hundred ninety-seven million, nine hundred ninety-three thousand, four hundred one".