748158225621 has 8 divisors (see below), whose sum is σ = 997550152704. Its totient is φ = 498769224480.

The previous prime is 748158225611. The next prime is 748158225649. The reversal of 748158225621 is 126522851847.

It is a happy number.

748158225621 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 748158225621 - 2⁶ = 748158225557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (748158225611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42016 + ... + 1223961.

It is an arithmetic number, because the mean of its divisors is an integer number (124693769088).

Almost surely, 2^748158225621 is an apocalyptic number.

It is an amenable number.

748158225621 is a deficient number, since it is larger than the sum of its proper divisors (249391927083).

748158225621 is a wasteful number, since it uses less digits than its factorization.

748158225621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462971.

The product of its digits is 2150400, while the sum is 51.

The spelling of 748158225621 in words is "seven hundred forty-eight billion, one hundred fifty-eight million, two hundred twenty-five thousand, six hundred twenty-one".