98278076440 has 32 divisors (see below), whose sum is σ = 234133066080. Its totient is φ = 36998804992.

The previous prime is 98278076417. The next prime is 98278076443. The reversal of 98278076440 is 4467087289.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (98278076443) 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, 72262612 + ... + 72263971.

It is an arithmetic number, because the mean of its divisors is an integer number (7316658315).

Almost surely, 2^98278076440 is an apocalyptic number.

It is an amenable number.

98278076440 is an abundant number, since it is smaller than the sum of its proper divisors (135854989640).

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

98278076440 is a wasteful number, since it uses less digits than its factorization.

98278076440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144526611 (or 144526607 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 55.

The spelling of 98278076440 in words is "ninety-eight billion, two hundred seventy-eight million, seventy-six thousand, four hundred forty".