9961077494 has 4 divisors (see below), whose sum is σ = 14941616244. Its totient is φ = 4980538746.

The previous prime is 9961077473. The next prime is 9961077509. The reversal of 9961077494 is 4947701699.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4947701699 = 1301 ⋅3802999.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2490269372 + ... + 2490269375.

It is an arithmetic number, because the mean of its divisors is an integer number (3735404061).

Almost surely, 2^9961077494 is an apocalyptic number.

9961077494 is a deficient number, since it is larger than the sum of its proper divisors (4980538750).

9961077494 is a wasteful number, since it uses less digits than its factorization.

9961077494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4980538749.

The product of its (nonzero) digits is 3429216, while the sum is 56.

The square root of 9961077494 is about 99805.1977303788. The cubic root of 9961077494 is about 2151.6358557251.

The spelling of 9961077494 in words is "nine billion, nine hundred sixty-one million, seventy-seven thousand, four hundred ninety-four".