3945701209662 has 24 divisors (see below), whose sum is σ = 8549166736656. Its totient is φ = 1315211052096.

The previous prime is 3945701209633. The next prime is 3945701209721. The reversal of 3945701209662 is 2669021075493.

3945701209662 is a `hidden beast` number, since 3 + 9 + 4 + 570 + 1 + 2 + 0 + 9 + 6 + 62 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 3945701209599 and 3945701209608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 800778 + ... + 2921069.

It is an arithmetic number, because the mean of its divisors is an integer number (356215280694).

Almost surely, 2^{3945701209662} is an apocalyptic number.

3945701209662 is an abundant number, since it is smaller than the sum of its proper divisors (4603465526994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3945701209662 is a wasteful number, since it uses less digits than its factorization.

3945701209662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3780752 (or 3780749 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The spelling of 3945701209662 in words is "three trillion, nine hundred forty-five billion, seven hundred one million, two hundred nine thousand, six hundred sixty-two".