964977779503 has 2 divisors, whose sum is σ = 964977779504. Its totient is φ = 964977779502.

The previous prime is 964977779429. The next prime is 964977779569. The reversal of 964977779503 is 305977779469.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 964977779503 - 2²¹ = 964975682351 is a prime.

It is a super-2 number, since 2×964977779503² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (964977779903) 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, 482488889751 + 482488889752.

It is an arithmetic number, because the mean of its divisors is an integer number (482488889752).

Almost surely, 2^964977779503 is an apocalyptic number.

964977779503 is a deficient number, since it is larger than the sum of its proper divisors (1).

964977779503 is an equidigital number, since it uses as much as digits as its factorization.

964977779503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630118440, while the sum is 73.

The spelling of 964977779503 in words is "nine hundred sixty-four billion, nine hundred seventy-seven million, seven hundred seventy-nine thousand, five hundred three".