7902198001 has 2 divisors, whose sum is σ = 7902198002. Its totient is φ = 7902198000.

The previous prime is 7902197993. The next prime is 7902198037. The reversal of 7902198001 is 1008912097.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6636546225 + 1265651776 = 81465^2 + 35576^2 .

It is a cyclic number.

It is not a de Polignac number, because 7902198001 - 2³ = 7902197993 is a prime.

It is not a weakly prime, because it can be changed into another prime (7902198041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3951099000 + 3951099001.

It is an arithmetic number, because the mean of its divisors is an integer number (3951099001).

Almost surely, 2^7902198001 is an apocalyptic number.

It is an amenable number.

7902198001 is a deficient number, since it is larger than the sum of its proper divisors (1).

7902198001 is an equidigital number, since it uses as much as digits as its factorization.

7902198001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 7902198001 is about 88894.3080348793. The cubic root of 7902198001 is about 1991.8163933803.

The spelling of 7902198001 in words is "seven billion, nine hundred two million, one hundred ninety-eight thousand, one".