972434626642 has 4 divisors (see below), whose sum is σ = 1458651939966. Its totient is φ = 486217313320.

The previous prime is 972434626621. The next prime is 972434626649. The reversal of 972434626642 is 246626434279.

972434626642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 986121²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 972434626641 + 1 = 986121^2 + 1^2 .

It is not an unprimeable number, because it can be changed into a prime (972434626649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243108656659 + ... + 243108656662.

Almost surely, 2^972434626642 is an apocalyptic number.

972434626642 is a deficient number, since it is larger than the sum of its proper divisors (486217313324).

972434626642 is a wasteful number, since it uses less digits than its factorization.

972434626642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486217313323.

The product of its digits is 20901888, while the sum is 55.

The spelling of 972434626642 in words is "nine hundred seventy-two billion, four hundred thirty-four million, six hundred twenty-six thousand, six hundred forty-two".