1015115307426 has 120 divisors (see below), whose sum is σ = 2505781485900. Its totient is φ = 306922936320.

The previous prime is 1015115307407. The next prime is 1015115307443. The reversal of 1015115307426 is 6247035115101.

1015115307426 is a `hidden beast` number, since 1 + 0 + 1 + 51 + 1 + 530 + 74 + 2 + 6 = 666.

1015115307426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 965453630625 + 49661676801 = 982575^2 + 222849^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 8743630 + ... + 8858966.

Almost surely, 2^{1015115307426} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1015115307426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1252890742950).

1015115307426 is an abundant number, since it is smaller than the sum of its proper divisors (1490666178474).

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

1015115307426 is a wasteful number, since it uses less digits than its factorization.

1015115307426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115822 (or 115802 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The spelling of 1015115307426 in words is "one trillion, fifteen billion, one hundred fifteen million, three hundred seven thousand, four hundred twenty-six".