5147496661 has 2 divisors, whose sum is σ = 5147496662. Its totient is φ = 5147496660.

The previous prime is 5147496617. The next prime is 5147496737. The reversal of 5147496661 is 1666947415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3325828900 + 1821667761 = 57670^2 + 42681^2 .

It is a cyclic number.

It is not a de Polignac number, because 5147496661 - 2¹⁷ = 5147365589 is a prime.

It is a super-2 number, since 2×5147496661² = 52993443750012297842, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5147496161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2573748330 + 2573748331.

It is an arithmetic number, because the mean of its divisors is an integer number (2573748331).

Almost surely, 2^5147496661 is an apocalyptic number.

It is an amenable number.

5147496661 is a deficient number, since it is larger than the sum of its proper divisors (1).

5147496661 is an equidigital number, since it uses as much as digits as its factorization.

5147496661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 49.

The square root of 5147496661 is about 71746.0567627239. The cubic root of 5147496661 is about 1726.6276493016.

The spelling of 5147496661 in words is "five billion, one hundred forty-seven million, four hundred ninety-six thousand, six hundred sixty-one".