62640772819 has 2 divisors, whose sum is σ = 62640772820. Its totient is φ = 62640772818.

The previous prime is 62640772813. The next prime is 62640772841. The reversal of 62640772819 is 91827704626.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 62640772819 - 2²³ = 62632384211 is a prime.

It is a super-4 number, since 4×62640772819⁴ (a number of 44 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (62640772813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31320386409 + 31320386410.

It is an arithmetic number, because the mean of its divisors is an integer number (31320386410).

Almost surely, 2^62640772819 is an apocalyptic number.

62640772819 is a deficient number, since it is larger than the sum of its proper divisors (1).

62640772819 is an equidigital number, since it uses as much as digits as its factorization.

62640772819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 62640772819 in words is "sixty-two billion, six hundred forty million, seven hundred seventy-two thousand, eight hundred nineteen".