97972738946 has 8 divisors (see below), whose sum is σ = 153348634944. Its totient is φ = 46856527300.

The previous prime is 97972738943. The next prime is 97972738949. The reversal of 97972738946 is 64983727979.

It is an interprime number because it is at equal distance from previous prime (97972738943) and next prime (97972738949).

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

It is a self number, because there is not a number n which added to its sum of digits gives 97972738946.

It is not an unprimeable number, because it can be changed into a prime (97972738943) 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 3 ways as a sum of consecutive naturals, for example, 1064921030 + ... + 1064921121.

It is an arithmetic number, because the mean of its divisors is an integer number (19168579368).

Almost surely, 2^97972738946 is an apocalyptic number.

97972738946 is a deficient number, since it is larger than the sum of its proper divisors (55375895998).

97972738946 is a wasteful number, since it uses less digits than its factorization.

97972738946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129842176.

The product of its digits is 288054144, while the sum is 71.

The spelling of 97972738946 in words is "ninety-seven billion, nine hundred seventy-two million, seven hundred thirty-eight thousand, nine hundred forty-six".