9474621157 has 2 divisors, whose sum is σ = 9474621158. Its totient is φ = 9474621156.

The previous prime is 9474621131. The next prime is 9474621217. The reversal of 9474621157 is 7511264749.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8811764641 + 662856516 = 93871^2 + 25746^2 .

It is an emirp because it is prime and its reverse (7511264749) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9474621157 - 2¹¹ = 9474619109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9474621557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4737310578 + 4737310579.

It is an arithmetic number, because the mean of its divisors is an integer number (4737310579).

Almost surely, 2^9474621157 is an apocalyptic number.

It is an amenable number.

9474621157 is a deficient number, since it is larger than the sum of its proper divisors (1).

9474621157 is an equidigital number, since it uses as much as digits as its factorization.

9474621157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 46.

The square root of 9474621157 is about 97337.6656644282. The cubic root of 9474621157 is about 2116.0241399953.

The spelling of 9474621157 in words is "nine billion, four hundred seventy-four million, six hundred twenty-one thousand, one hundred fifty-seven".