1649554914 has 64 divisors (see below), whose sum is σ = 4073760000. Its totient is φ = 443568384.

The previous prime is 1649554913. The next prime is 1649554993. The reversal of 1649554914 is 4194559461.

It is not an unprimeable number, because it can be changed into a prime (1649554913) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11412 + ... + 58560.

It is an arithmetic number, because the mean of its divisors is an integer number (63652500).

Almost surely, 2^1649554914 is an apocalyptic number.

1649554914 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1649554914, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2036880000).

1649554914 is an abundant number, since it is smaller than the sum of its proper divisors (2424205086).

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

1649554914 is a wasteful number, since it uses less digits than its factorization.

1649554914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47192 (or 47178 counting only the distinct ones).

The product of its digits is 777600, while the sum is 48.

The square root of 1649554914 is about 40614.7130237307. The cubic root of 1649554914 is about 1181.5594898250.

The spelling of 1649554914 in words is "one billion, six hundred forty-nine million, five hundred fifty-four thousand, nine hundred fourteen".