15426236420 has 48 divisors (see below), whose sum is σ = 38971551360. Its totient is φ = 5010626304.

The previous prime is 15426236417. The next prime is 15426236437. The reversal of 15426236420 is 2463262451.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2897009 + ... + 2902328.

It is an arithmetic number, because the mean of its divisors is an integer number (811907320).

Almost surely, 2^15426236420 is an apocalyptic number.

15426236420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15426236420 is an abundant number, since it is smaller than the sum of its proper divisors (23545314940).

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

15426236420 is a wasteful number, since it uses less digits than its factorization.

15426236420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5799372 (or 5799370 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 15426236420 its reverse (2463262451), we get a palindrome (17889498871).

The spelling of 15426236420 in words is "fifteen billion, four hundred twenty-six million, two hundred thirty-six thousand, four hundred twenty".