1844402277040 has 20 divisors (see below), whose sum is σ = 4288235294304. Its totient is φ = 737760910784.

The previous prime is 1844402276971. The next prime is 1844402277103. The reversal of 1844402277040 is 407722044481.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×1844402277040² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11527514152 + ... + 11527514311.

Almost surely, 2^{1844402277040} is an apocalyptic number.

1844402277040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1844402277040 is an abundant number, since it is smaller than the sum of its proper divisors (2443833017264).

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

1844402277040 is a wasteful number, since it uses less digits than its factorization.

1844402277040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23055028476 (or 23055028470 counting only the distinct ones).

The product of its (nonzero) digits is 401408, while the sum is 43.

The spelling of 1844402277040 in words is "one trillion, eight hundred forty-four billion, four hundred two million, two hundred seventy-seven thousand, forty".