3937494042291 has 8 divisors (see below), whose sum is σ = 5250029725584. Its totient is φ = 2624977193600.

The previous prime is 3937494042283. The next prime is 3937494042301. The reversal of 3937494042291 is 1922404947393.

It is a happy number.

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 3937494042291 - 2³ = 3937494042283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3937494042211) 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, 4213410 + ... + 5062391.

It is an arithmetic number, because the mean of its divisors is an integer number (656253715698).

Almost surely, 2^{3937494042291} is an apocalyptic number.

3937494042291 is a deficient number, since it is larger than the sum of its proper divisors (1312535683293).

3937494042291 is a wasteful number, since it uses less digits than its factorization.

3937494042291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9417301.

The product of its (nonzero) digits is 11757312, while the sum is 57.

The spelling of 3937494042291 in words is "three trillion, nine hundred thirty-seven billion, four hundred ninety-four million, forty-two thousand, two hundred ninety-one".