1045261139004 has 36 divisors (see below), whose sum is σ = 2642223061296. Its totient is φ = 348415740288.

The previous prime is 1045261139003. The next prime is 1045261139011. The reversal of 1045261139004 is 4009311625401.

It is a happy number.

1045261139004 is a `hidden beast` number, since 1 + 0 + 4 + 5 + 2 + 611 + 39 + 0 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1045261139004² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1045261139004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045261139003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3530532 + ... + 3815124.

It is an arithmetic number, because the mean of its divisors is an integer number (73395085036).

Almost surely, 2^{1045261139004} is an apocalyptic number.

It is an amenable number.

1045261139004 is an abundant number, since it is smaller than the sum of its proper divisors (1596961922292).

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

1045261139004 is a wasteful number, since it uses less digits than its factorization.

1045261139004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386626 (or 386621 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 1045261139004 in words is "one trillion, forty-five billion, two hundred sixty-one million, one hundred thirty-nine thousand, four".