10642239277 has 2 divisors, whose sum is σ = 10642239278. Its totient is φ = 10642239276.

The previous prime is 10642239253. The next prime is 10642239319. The reversal of 10642239277 is 77293224601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10267971561 + 374267716 = 101331^2 + 19346^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10642239277 is a prime.

It is a super-2 number, since 2×10642239277² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10642239077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5321119638 + 5321119639.

It is an arithmetic number, because the mean of its divisors is an integer number (5321119639).

Almost surely, 2^10642239277 is an apocalyptic number.

It is an amenable number.

10642239277 is a deficient number, since it is larger than the sum of its proper divisors (1).

10642239277 is an equidigital number, since it uses as much as digits as its factorization.

10642239277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 43.

The spelling of 10642239277 in words is "ten billion, six hundred forty-two million, two hundred thirty-nine thousand, two hundred seventy-seven".