9977964254 has 4 divisors (see below), whose sum is σ = 14966946384. Its totient is φ = 4988982126.

The previous prime is 9977964239. The next prime is 9977964287. The reversal of 9977964254 is 4524697799.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4524697799 = 64621 ⋅70019.

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, 2494491062 + ... + 2494491065.

It is an arithmetic number, because the mean of its divisors is an integer number (3741736596).

Almost surely, 2^9977964254 is an apocalyptic number.

9977964254 is a deficient number, since it is larger than the sum of its proper divisors (4988982130).

9977964254 is a wasteful number, since it uses less digits than its factorization.

9977964254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4988982129.

The product of its digits is 34292160, while the sum is 62.

The square root of 9977964254 is about 99889.7605062701. The cubic root of 9977964254 is about 2152.8510403782.

The spelling of 9977964254 in words is "nine billion, nine hundred seventy-seven million, nine hundred sixty-four thousand, two hundred fifty-four".