642673015276711 has 2 divisors, whose sum is σ = 642673015276712. Its totient is φ = 642673015276710.

The previous prime is 642673015276697. The next prime is 642673015276717. The reversal of 642673015276711 is 117672510376246.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 642673015276711 - 2¹⁹ = 642673014752423 is a prime.

It is a super-3 number, since 3×642673015276711³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (642673015276717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 321336507638355 + 321336507638356.

It is an arithmetic number, because the mean of its divisors is an integer number (321336507638356).

Almost surely, 2^{642673015276711} is an apocalyptic number.

642673015276711 is a deficient number, since it is larger than the sum of its proper divisors (1).

642673015276711 is an equidigital number, since it uses as much as digits as its factorization.

642673015276711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17781120, while the sum is 58.

The spelling of 642673015276711 in words is "six hundred forty-two trillion, six hundred seventy-three billion, fifteen million, two hundred seventy-six thousand, seven hundred eleven".