3959447501670 has 16 divisors (see below), whose sum is σ = 9502674004080. Its totient is φ = 1055852667104.

The previous prime is 3959447501663. The next prime is 3959447501677. The reversal of 3959447501670 is 761057449593.

It is an interprime number because it is at equal distance from previous prime (3959447501663) and next prime (3959447501677).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3959447501677) 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, 65990791665 + ... + 65990791724.

It is an arithmetic number, because the mean of its divisors is an integer number (593917125255).

Almost surely, 2^{3959447501670} is an apocalyptic number.

3959447501670 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3959447501670 is an abundant number, since it is smaller than the sum of its proper divisors (5543226502410).

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

3959447501670 is a wasteful number, since it uses less digits than its factorization.

3959447501670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131981583399.

The product of its (nonzero) digits is 28576800, while the sum is 60.

The spelling of 3959447501670 in words is "three trillion, nine hundred fifty-nine billion, four hundred forty-seven million, five hundred one thousand, six hundred seventy".