1061858212842 has 64 divisors (see below), whose sum is σ = 2430377763840. Its totient is φ = 302979211776.

The previous prime is 1061858212823. The next prime is 1061858212939. The reversal of 1061858212842 is 2482128581601.

It is a super-2 number, since 2×1061858212842² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1061858212791 and 1061858212800.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109498938 + ... + 109508634.

It is an arithmetic number, because the mean of its divisors is an integer number (37974652560).

Almost surely, 2^{1061858212842} is an apocalyptic number.

1061858212842 is an abundant number, since it is smaller than the sum of its proper divisors (1368519550998).

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

1061858212842 is a wasteful number, since it uses less digits than its factorization.

1061858212842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12955.

The product of its (nonzero) digits is 491520, while the sum is 48.

The spelling of 1061858212842 in words is "one trillion, sixty-one billion, eight hundred fifty-eight million, two hundred twelve thousand, eight hundred forty-two".