1097355544812 has 48 divisors (see below), whose sum is σ = 2968691335680. Its totient is φ = 349881477264.

The previous prime is 1097355544799. The next prime is 1097355544849. The reversal of 1097355544812 is 2184455537901.

1097355544812 is a `hidden beast` number, since 1 + 0 + 9 + 7 + 3 + 5 + 554 + 4 + 81 + 2 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220882288 + ... + 220887255.

It is an arithmetic number, because the mean of its divisors is an integer number (61847736160).

Almost surely, 2^{1097355544812} is an apocalyptic number.

1097355544812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1097355544812 is an abundant number, since it is smaller than the sum of its proper divisors (1871335790868).

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

1097355544812 is a wasteful number, since it uses less digits than its factorization.

1097355544812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441769579 (or 441769571 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 54.

The spelling of 1097355544812 in words is "one trillion, ninety-seven billion, three hundred fifty-five million, five hundred forty-four thousand, eight hundred twelve".