7012637649491 has 2 divisors, whose sum is σ = 7012637649492. Its totient is φ = 7012637649490.

The previous prime is 7012637649481. The next prime is 7012637649517. The reversal of 7012637649491 is 1949467362107.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7012637649491 - 2²² = 7012633455187 is a prime.

It is a super-3 number, since 3×7012637649491³ (a number of 40 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7012637649491.

It is not a weakly prime, because it can be changed into another prime (7012637649421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3506318824745 + 3506318824746.

It is an arithmetic number, because the mean of its divisors is an integer number (3506318824746).

Almost surely, 2^{7012637649491} is an apocalyptic number.

7012637649491 is a deficient number, since it is larger than the sum of its proper divisors (1).

7012637649491 is an equidigital number, since it uses as much as digits as its factorization.

7012637649491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13716864, while the sum is 59.

The spelling of 7012637649491 in words is "seven trillion, twelve billion, six hundred thirty-seven million, six hundred forty-nine thousand, four hundred ninety-one".