972155578373 has 8 divisors (see below), whose sum is σ = 1112908534848. Its totient is φ = 831871018944.

The previous prime is 972155578337. The next prime is 972155578397. The reversal of 972155578373 is 373875551279.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 972155578373 - 2²⁴ = 972138801157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972155578333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117094811 + ... + 117103112.

It is an arithmetic number, because the mean of its divisors is an integer number (139113566856).

Almost surely, 2^972155578373 is an apocalyptic number.

It is an amenable number.

972155578373 is a deficient number, since it is larger than the sum of its proper divisors (140752956475).

972155578373 is a wasteful number, since it uses less digits than its factorization.

972155578373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234198523.

The product of its digits is 55566000, while the sum is 62.

The spelling of 972155578373 in words is "nine hundred seventy-two billion, one hundred fifty-five million, five hundred seventy-eight thousand, three hundred seventy-three".