1264735053198 has 12 divisors (see below), whose sum is σ = 2740259281968. Its totient is φ = 421578351060.

The previous prime is 1264735053107. The next prime is 1264735053203. The reversal of 1264735053198 is 8913505374621.

It is a happy number.

1264735053198 is a `hidden beast` number, since 1 + 2 + 6 + 47 + 3 + 505 + 3 + 1 + 98 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35131529238 + ... + 35131529273.

It is an arithmetic number, because the mean of its divisors is an integer number (228354940164).

It is a 1-persistent number, because it is pandigital, but 2⋅1264735053198 = 2529470106396 is not.

Almost surely, 2^{1264735053198} is an apocalyptic number.

1264735053198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1264735053198 is an abundant number, since it is smaller than the sum of its proper divisors (1475524228770).

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

1264735053198 is a wasteful number, since it uses less digits than its factorization.

1264735053198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70263058519 (or 70263058516 counting only the distinct ones).

The product of its (nonzero) digits is 5443200, while the sum is 54.

The spelling of 1264735053198 in words is "one trillion, two hundred sixty-four billion, seven hundred thirty-five million, fifty-three thousand, one hundred ninety-eight".