97628691627 has 12 divisors (see below), whose sum is σ = 144298738584. Its totient is φ = 63572171040.

The previous prime is 97628691593. The next prime is 97628691637. The reversal of 97628691627 is 72619682679.

It is not a de Polignac number, because 97628691627 - 2¹⁵ = 97628658859 is a prime.

It is a super-2 number, since 2×97628691627² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (97628691637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126134874 + ... + 126135647.

It is an arithmetic number, because the mean of its divisors is an integer number (12024894882).

Almost surely, 2^97628691627 is an apocalyptic number.

97628691627 is a deficient number, since it is larger than the sum of its proper divisors (46670046957).

97628691627 is a wasteful number, since it uses less digits than its factorization.

97628691627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252270570 (or 252270567 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The spelling of 97628691627 in words is "ninety-seven billion, six hundred twenty-eight million, six hundred ninety-one thousand, six hundred twenty-seven".