17620652397 has 16 divisors (see below), whose sum is σ = 23579136000. Its totient is φ = 11704705584.

The previous prime is 17620652393. The next prime is 17620652417. The reversal of 17620652397 is 79325602671.

It is not a de Polignac number, because 17620652397 - 2² = 17620652393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17620652393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1071604 + ... + 1087922.

It is an arithmetic number, because the mean of its divisors is an integer number (1473696000).

Almost surely, 2^17620652397 is an apocalyptic number.

It is an amenable number.

17620652397 is a deficient number, since it is larger than the sum of its proper divisors (5958483603).

17620652397 is a wasteful number, since it uses less digits than its factorization.

17620652397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17600.

The product of its (nonzero) digits is 952560, while the sum is 48.

The spelling of 17620652397 in words is "seventeen billion, six hundred twenty million, six hundred fifty-two thousand, three hundred ninety-seven".