1958632601 has 2 divisors, whose sum is σ = 1958632602. Its totient is φ = 1958632600.

The previous prime is 1958632579. The next prime is 1958632603. The reversal of 1958632601 is 1062368591.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1857610000 + 101022601 = 43100^2 + 10051^2 .

It is a cyclic number.

It is not a de Polignac number, because 1958632601 - 2²⁶ = 1891523737 is a prime.

Together with 1958632603, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1958632603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 979316300 + 979316301.

It is an arithmetic number, because the mean of its divisors is an integer number (979316301).

Almost surely, 2^1958632601 is an apocalyptic number.

It is an amenable number.

1958632601 is a deficient number, since it is larger than the sum of its proper divisors (1).

1958632601 is an equidigital number, since it uses as much as digits as its factorization.

1958632601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 1958632601 is about 44256.4413503842. The cubic root of 1958632601 is about 1251.1738521918.

The spelling of 1958632601 in words is "one billion, nine hundred fifty-eight million, six hundred thirty-two thousand, six hundred one".