28461923742 has 64 divisors (see below), whose sum is σ = 66690376704. Its totient is φ = 7927944960.

The previous prime is 28461923741. The next prime is 28461923773. The reversal of 28461923742 is 24732916482.

It is a super-2 number, since 2×28461923742² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28461923691 and 28461923700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28461923741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2772463 + ... + 2782709.

It is an arithmetic number, because the mean of its divisors is an integer number (1042037136).

Almost surely, 2^28461923742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28461923742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33345188352).

28461923742 is an abundant number, since it is smaller than the sum of its proper divisors (38228452962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28461923742 is a wasteful number, since it uses less digits than its factorization.

28461923742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11913.

The product of its digits is 1161216, while the sum is 48.

The spelling of 28461923742 in words is "twenty-eight billion, four hundred sixty-one million, nine hundred twenty-three thousand, seven hundred forty-two".