949777987453 has 2 divisors, whose sum is σ = 949777987454. Its totient is φ = 949777987452.

The previous prime is 949777987381. The next prime is 949777987493. The reversal of 949777987453 is 354789777949.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 838400272164 + 111377715289 = 915642^2 + 333733^2 .

It is a cyclic number.

It is not a de Polignac number, because 949777987453 - 2¹⁷ = 949777856381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (949777987493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474888993726 + 474888993727.

It is an arithmetic number, because the mean of its divisors is an integer number (474888993727).

Almost surely, 2^949777987453 is an apocalyptic number.

It is an amenable number.

949777987453 is a deficient number, since it is larger than the sum of its proper divisors (1).

949777987453 is an equidigital number, since it uses as much as digits as its factorization.

949777987453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360631680, while the sum is 79.

The spelling of 949777987453 in words is "nine hundred forty-nine billion, seven hundred seventy-seven million, nine hundred eighty-seven thousand, four hundred fifty-three".