1371723668 has 24 divisors (see below), whose sum is σ = 2752119552. Its totient is φ = 586023264.

The previous prime is 1371723643. The next prime is 1371723701. The reversal of 1371723668 is 8663271731.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68396 + ... + 86147.

It is an arithmetic number, because the mean of its divisors is an integer number (114671648).

Almost surely, 2^1371723668 is an apocalyptic number.

It is an amenable number.

1371723668 is an abundant number, since it is smaller than the sum of its proper divisors (1380395884).

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

1371723668 is a wasteful number, since it uses less digits than its factorization.

1371723668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154871 (or 154869 counting only the distinct ones).

The product of its digits is 254016, while the sum is 44.

The square root of 1371723668 is about 37036.7880356815. The cubic root of 1371723668 is about 1111.1061310784.

The spelling of 1371723668 in words is "one billion, three hundred seventy-one million, seven hundred twenty-three thousand, six hundred sixty-eight".