275498790840 has 1536 divisors, whose sum is σ = 1222550784000. Its totient is φ = 54500179968.

The previous prime is 275498790811. The next prime is 275498790841. The reversal of 275498790840 is 48097894572.

275498790840 is a `hidden beast` number, since 2 + 7 + 549 + 8 + 7 + 9 + 0 + 84 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275498790841) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 2840193672 + ... + 2840193768.

It is an arithmetic number, because the mean of its divisors is an integer number (795931500).

Almost surely, 2^275498790840 is an apocalyptic number.

275498790840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 275498790840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (611275392000).

275498790840 is an abundant number, since it is smaller than the sum of its proper divisors (947051993160).

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

275498790840 is a wasteful number, since it uses less digits than its factorization.

275498790840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 63.

The spelling of 275498790840 in words is "two hundred seventy-five billion, four hundred ninety-eight million, seven hundred ninety thousand, eight hundred forty".