1071920879278 has 16 divisors (see below), whose sum is σ = 1622668602240. Its totient is φ = 531046677816.

The previous prime is 1071920879269. The next prime is 1071920879279. The reversal of 1071920879278 is 8729780291701.

It is a super-2 number, since 2×1071920879278² (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 (1071920879279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3693000 + ... + 3972667.

It is an arithmetic number, because the mean of its divisors is an integer number (101416787640).

Almost surely, 2^{1071920879278} is an apocalyptic number.

1071920879278 is a deficient number, since it is larger than the sum of its proper divisors (550747722962).

1071920879278 is a wasteful number, since it uses less digits than its factorization.

1071920879278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7666311.

The product of its (nonzero) digits is 7112448, while the sum is 61.

The spelling of 1071920879278 in words is "one trillion, seventy-one billion, nine hundred twenty million, eight hundred seventy-nine thousand, two hundred seventy-eight".