10020620977 has 2 divisors, whose sum is σ = 10020620978. Its totient is φ = 10020620976.

The previous prime is 10020620917. The next prime is 10020620989. The reversal of 10020620977 is 77902602001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9728074161 + 292546816 = 98631^2 + 17104^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020620977 - 2¹⁵ = 10020588209 is a prime.

It is not a weakly prime, because it can be changed into another prime (10020620917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010310488 + 5010310489.

It is an arithmetic number, because the mean of its divisors is an integer number (5010310489).

Almost surely, 2^10020620977 is an apocalyptic number.

It is an amenable number.

10020620977 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020620977 is an equidigital number, since it uses as much as digits as its factorization.

10020620977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 34.

The spelling of 10020620977 in words is "ten billion, twenty million, six hundred twenty thousand, nine hundred seventy-seven".