1649267441670 has 64 divisors (see below), whose sum is σ = 3984233526720. Its totient is φ = 436925104128.

The previous prime is 1649267441651. The next prime is 1649267441681. The reversal of 1649267441670 is 761447629461.

It is a self number, because there is not a number n which added to its sum of digits gives 1649267441670.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2876934 + ... + 3402246.

It is an arithmetic number, because the mean of its divisors is an integer number (62253648855).

Almost surely, 2^{1649267441670} is an apocalyptic number.

1649267441670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1649267441670 is an abundant number, since it is smaller than the sum of its proper divisors (2334966085050).

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

1649267441670 is a wasteful number, since it uses less digits than its factorization.

1649267441670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526009.

The product of its (nonzero) digits is 12192768, while the sum is 57.

The spelling of 1649267441670 in words is "one trillion, six hundred forty-nine billion, two hundred sixty-seven million, four hundred forty-one thousand, six hundred seventy".