1061378478798 has 64 divisors (see below), whose sum is σ = 2332690272000. Its totient is φ = 319283366400.

The previous prime is 1061378478793. The next prime is 1061378478799. The reversal of 1061378478798 is 8978748731601.

It is a super-2 number, since 2×1061378478798² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061378478793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4936953 + ... + 5147451.

It is an arithmetic number, because the mean of its divisors is an integer number (36448285500).

Almost surely, 2^{1061378478798} is an apocalyptic number.

1061378478798 is an abundant number, since it is smaller than the sum of its proper divisors (1271311793202).

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

1061378478798 is a wasteful number, since it uses less digits than its factorization.

1061378478798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211073.

The product of its (nonzero) digits is 113799168, while the sum is 69.

The spelling of 1061378478798 in words is "one trillion, sixty-one billion, three hundred seventy-eight million, four hundred seventy-eight thousand, seven hundred ninety-eight".