3971354266542 has 32 divisors (see below), whose sum is σ = 8570691537408. Its totient is φ = 1219525812576.

The previous prime is 3971354266541. The next prime is 3971354266547. The reversal of 3971354266542 is 2456624531793.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3971354266541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50571898 + ... + 50650365.

It is an arithmetic number, because the mean of its divisors is an integer number (267834110544).

Almost surely, 2^{3971354266542} is an apocalyptic number.

3971354266542 is an abundant number, since it is smaller than the sum of its proper divisors (4599337270866).

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

3971354266542 is a wasteful number, since it uses less digits than its factorization.

3971354266542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101222784.

The product of its digits is 32659200, while the sum is 57.

The spelling of 3971354266542 in words is "three trillion, nine hundred seventy-one billion, three hundred fifty-four million, two hundred sixty-six thousand, five hundred forty-two".