1000015049991 has 16 divisors (see below), whose sum is σ = 1395857320704. Its totient is φ = 635613574464.

The previous prime is 1000015049963. The next prime is 1000015050049. The reversal of 1000015049991 is 1999405100001.

1000015049991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1000015049991 - 2¹⁵ = 1000015017223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000015249991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23583006 + ... + 23625371.

It is an arithmetic number, because the mean of its divisors is an integer number (87241082544).

Almost surely, 2^{1000015049991} is an apocalyptic number.

1000015049991 is a deficient number, since it is larger than the sum of its proper divisors (395842270713).

1000015049991 is a wasteful number, since it uses less digits than its factorization.

1000015049991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47208710.

The product of its (nonzero) digits is 14580, while the sum is 39.

The spelling of 1000015049991 in words is "one trillion, fifteen million, forty-nine thousand, nine hundred ninety-one".