4638890789501 has 4 divisors (see below), whose sum is σ = 4788532427904. Its totient is φ = 4489249151100.

The previous prime is 4638890789497. The next prime is 4638890789509. The reversal of 4638890789501 is 1059870988364.

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 4638890789501 - 2² = 4638890789497 is a prime.

It is a super-2 number, since 2×4638890789501² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4638890789509) 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, 74820819155 + ... + 74820819216.

It is an arithmetic number, because the mean of its divisors is an integer number (1197133106976).

Almost surely, 2^{4638890789501} is an apocalyptic number.

It is an amenable number.

4638890789501 is a deficient number, since it is larger than the sum of its proper divisors (149641638403).

4638890789501 is a wasteful number, since it uses less digits than its factorization.

4638890789501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149641638402.

The product of its (nonzero) digits is 104509440, while the sum is 68.

The spelling of 4638890789501 in words is "four trillion, six hundred thirty-eight billion, eight hundred ninety million, seven hundred eighty-nine thousand, five hundred one".