20010977347 has 2 divisors, whose sum is σ = 20010977348. Its totient is φ = 20010977346.

The previous prime is 20010977309. The next prime is 20010977353. The reversal of 20010977347 is 74377901002.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20010977347 is a prime.

It is not a weakly prime, because it can be changed into another prime (20010977947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005488673 + 10005488674.

It is an arithmetic number, because the mean of its divisors is an integer number (10005488674).

Almost surely, 2^20010977347 is an apocalyptic number.

20010977347 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010977347 is an equidigital number, since it uses as much as digits as its factorization.

20010977347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 74088, while the sum is 40.

The spelling of 20010977347 in words is "twenty billion, ten million, nine hundred seventy-seven thousand, three hundred forty-seven".