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12500790397 is a prime number
BaseRepresentation
bin10111010010001101…
…01110110001111101
31012021012102221121221
423221012232301331
5201100200243042
65424235153341
7621531652024
oct135106566175
935235387557
1012500790397
115335408937
12250a5a5851
131242b355c4
1486833b8bb
154d26e2d67
hex2e91aec7d

12500790397 has 2 divisors, whose sum is σ = 12500790398. Its totient is φ = 12500790396.

The previous prime is 12500790383. The next prime is 12500790427. The reversal of 12500790397 is 79309700521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10694455396 + 1806335001 = 103414^2 + 42501^2 .

It is a cyclic number.

It is not a de Polignac number, because 12500790397 - 231 = 10353306749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12500796397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6250395198 + 6250395199.

It is an arithmetic number, because the mean of its divisors is an integer number (6250395199).

Almost surely, 212500790397 is an apocalyptic number.

It is an amenable number.

12500790397 is a deficient number, since it is larger than the sum of its proper divisors (1).

12500790397 is an equidigital number, since it uses as much as digits as its factorization.

12500790397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 119070, while the sum is 43.

The spelling of 12500790397 in words is "twelve billion, five hundred million, seven hundred ninety thousand, three hundred ninety-seven".