1090208920902 has 16 divisors (see below), whose sum is σ = 2182005926640. Its totient is φ = 363138292832.

The previous prime is 1090208920897. The next prime is 1090208920919. The reversal of 1090208920902 is 2090298020901.

It is a happy number.

It is a super-4 number, since 4×1090208920902⁴ (a number of 49 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66161277 + ... + 66177752.

It is an arithmetic number, because the mean of its divisors is an integer number (136375370415).

Almost surely, 2^{1090208920902} is an apocalyptic number.

1090208920902 is an abundant number, since it is smaller than the sum of its proper divisors (1091797005738).

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

1090208920902 is a wasteful number, since it uses less digits than its factorization.

1090208920902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132340407.

The product of its (nonzero) digits is 46656, while the sum is 42.

The spelling of 1090208920902 in words is "one trillion, ninety billion, two hundred eight million, nine hundred twenty thousand, nine hundred two".