1079291215872 has 170 divisors, whose sum is σ = 3224540322938. Its totient is φ = 359761969152.

The previous prime is 1079291215861. The next prime is 1079291215879. The reversal of 1079291215872 is 2785121929701.

1079291215872 is a `hidden beast` number, since 1 + 0 + 79 + 291 + 215 + 8 + 72 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1032386052096 + 46905163776 = 1016064^2 + 216576^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1079291215879) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 5206758 + ... + 5410074.

Almost surely, 2^{1079291215872} is an apocalyptic number.

1079291215872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1079291215872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1612270161469).

1079291215872 is an abundant number, since it is smaller than the sum of its proper divisors (2145249107066).

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

1079291215872 is an frugal number, since it uses more digits than its factorization.

1079291215872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203361 (or 203322 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 54.

The spelling of 1079291215872 in words is "one trillion, seventy-nine billion, two hundred ninety-one million, two hundred fifteen thousand, eight hundred seventy-two".