1236354472098 has 96 divisors (see below), whose sum is σ = 2811202692480. Its totient is φ = 407196408960.

The previous prime is 1236354472097. The next prime is 1236354472103. The reversal of 1236354472098 is 8902744536321.

1236354472098 is a `hidden beast` number, since 1 + 2 + 3 + 6 + 3 + 544 + 7 + 2 + 0 + 98 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1236354472097) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 65347336 + ... + 65366252.

It is an arithmetic number, because the mean of its divisors is an integer number (29283361380).

It is a 1-persistent number, because it is pandigital, but 2⋅1236354472098 = 2472708944196 is not.

Almost surely, 2^{1236354472098} is an apocalyptic number.

1236354472098 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1236354472098, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1405601346240).

1236354472098 is an abundant number, since it is smaller than the sum of its proper divisors (1574848220382).

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

1236354472098 is a wasteful number, since it uses less digits than its factorization.

1236354472098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20534 (or 20522 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 1236354472098 in words is "one trillion, two hundred thirty-six billion, three hundred fifty-four million, four hundred seventy-two thousand, ninety-eight".