274409769840 has 40 divisors (see below), whose sum is σ = 850670287248. Its totient is φ = 73175938560.

The previous prime is 274409769787. The next prime is 274409769841. The reversal of 274409769840 is 48967904472.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274409769841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 571686781 + ... + 571687260.

Almost surely, 2^274409769840 is an apocalyptic number.

274409769840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

274409769840 is an abundant number, since it is smaller than the sum of its proper divisors (576260517408).

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

274409769840 is a wasteful number, since it uses less digits than its factorization.

274409769840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143374057 (or 1143374051 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 60.

The spelling of 274409769840 in words is "two hundred seventy-four billion, four hundred nine million, seven hundred sixty-nine thousand, eight hundred forty".