1049278809632 has 24 divisors (see below), whose sum is σ = 2109720162816. Its totient is φ = 513476863552.

The previous prime is 1049278809629. The next prime is 1049278809637. The reversal of 1049278809632 is 2369088729401.

It is a happy number.

It is a super-2 number, since 2×1049278809632² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1049278809637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 348827888 + ... + 348830895.

It is an arithmetic number, because the mean of its divisors is an integer number (87905006784).

Almost surely, 2^{1049278809632} is an apocalyptic number.

It is an amenable number.

1049278809632 is an abundant number, since it is smaller than the sum of its proper divisors (1060441353184).

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

1049278809632 is an equidigital number, since it uses as much as digits as its factorization.

1049278809632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697658840 (or 697658832 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 59.

The spelling of 1049278809632 in words is "one trillion, forty-nine billion, two hundred seventy-eight million, eight hundred nine thousand, six hundred thirty-two".