949777987393 has 4 divisors (see below), whose sum is σ = 949780672960. Its totient is φ = 949775301828.

The previous prime is 949777987381. The next prime is 949777987453. The reversal of 949777987393 is 393789777949.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 393789777949 = 29483 ⋅13356503.

It is a cyclic number.

It is not a de Polignac number, because 949777987393 - 2²⁵ = 949744432961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (949777987493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 714213 + ... + 1552306.

It is an arithmetic number, because the mean of its divisors is an integer number (237445168240).

Almost surely, 2^949777987393 is an apocalyptic number.

It is an amenable number.

949777987393 is a deficient number, since it is larger than the sum of its proper divisors (2685567).

949777987393 is a wasteful number, since it uses less digits than its factorization.

949777987393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2685566.

The product of its digits is 4536852768, while the sum is 82.

The spelling of 949777987393 in words is "nine hundred forty-nine billion, seven hundred seventy-seven million, nine hundred eighty-seven thousand, three hundred ninety-three".