773651242620021 has 8 divisors (see below), whose sum is σ = 1031564344473504. Its totient is φ = 515752817923280.

The previous prime is 773651242620001. The next prime is 773651242620037. The reversal of 773651242620021 is 120026242156377.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 773651242620021 - 2²⁶ = 773651175511157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (773651242620001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3669166191 + ... + 3669377036.

It is an arithmetic number, because the mean of its divisors is an integer number (128945543059188).

Almost surely, 2^{773651242620021} is an apocalyptic number.

It is an amenable number.

773651242620021 is a deficient number, since it is larger than the sum of its proper divisors (257913101853483).

773651242620021 is a wasteful number, since it uses less digits than its factorization.

773651242620021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7338578371.

The product of its (nonzero) digits is 1693440, while the sum is 48.

Adding to 773651242620021 its reverse (120026242156377), we get a palindrome (893677484776398).

The spelling of 773651242620021 in words is "seven hundred seventy-three trillion, six hundred fifty-one billion, two hundred forty-two million, six hundred twenty thousand, twenty-one".