320973142479 has 36 divisors (see below), whose sum is σ = 499705783752. Its totient is φ = 183086224640.

The previous prime is 320973142463. The next prime is 320973142519. The reversal of 320973142479 is 974241379023.

It is a happy number.

It is not a de Polignac number, because 320973142479 - 2⁴ = 320973142463 is a prime.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320973142409) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1424892 + ... + 1634705.

Almost surely, 2^320973142479 is an apocalyptic number.

320973142479 is a deficient number, since it is larger than the sum of its proper divisors (178732641273).

320973142479 is a wasteful number, since it uses less digits than its factorization.

320973142479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3059656 (or 3059628 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 51.

The spelling of 320973142479 in words is "three hundred twenty billion, nine hundred seventy-three million, one hundred forty-two thousand, four hundred seventy-nine".