787376288949 has 4 divisors (see below), whose sum is σ = 1049835051936. Its totient is φ = 524917525964.

The previous prime is 787376288929. The next prime is 787376288989. The reversal of 787376288949 is 949882673787.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 787376288949 - 2¹¹ = 787376286901 is a prime.

It is a super-4 number, since 4×787376288949⁴ (a number of 49 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (787376288929) 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, 131229381489 + ... + 131229381494.

It is an arithmetic number, because the mean of its divisors is an integer number (262458762984).

Almost surely, 2^787376288949 is an apocalyptic number.

It is an amenable number.

787376288949 is a deficient number, since it is larger than the sum of its proper divisors (262458762987).

787376288949 is a wasteful number, since it uses less digits than its factorization.

787376288949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262458762986.

The product of its digits is 2048385024, while the sum is 78.

The spelling of 787376288949 in words is "seven hundred eighty-seven billion, three hundred seventy-six million, two hundred eighty-eight thousand, nine hundred forty-nine".