7490698261 has 4 divisors (see below), whose sum is σ = 7574863500. Its totient is φ = 7406533024.

The previous prime is 7490698249. The next prime is 7490698309. The reversal of 7490698261 is 1628960947.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1628960947 = 23 ⋅70824389.

It can be written as a sum of positive squares in 2 ways, for example, as 3214323025 + 4276375236 = 56695^2 + 65394^2 .

It is a cyclic number.

It is not a de Polignac number, because 7490698261 - 2⁷ = 7490698133 is a prime.

It is a super-2 number, since 2×7490698261² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7490698199 and 7490698208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7490698561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42082486 + ... + 42082663.

It is an arithmetic number, because the mean of its divisors is an integer number (1893715875).

Almost surely, 2^7490698261 is an apocalyptic number.

It is an amenable number.

7490698261 is a deficient number, since it is larger than the sum of its proper divisors (84165239).

7490698261 is an equidigital number, since it uses as much as digits as its factorization.

7490698261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84165238.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The square root of 7490698261 is about 86548.8201017206. The cubic root of 7490698261 is about 1956.6242618782.

The spelling of 7490698261 in words is "seven billion, four hundred ninety million, six hundred ninety-eight thousand, two hundred sixty-one".