2078611407720 has 48 divisors (see below), whose sum is σ = 6755487076260. Its totient is φ = 554296375296.

The previous prime is 2078611407703. The next prime is 2078611407721. The reversal of 2078611407720 is 277041168702.

2078611407720 is a `hidden beast` number, since 2 + 0 + 7 + 8 + 611 + 4 + 0 + 7 + 7 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1973895742116 + 104715665604 = 1404954^2 + 323598^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (2078611407721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2886959929 + ... + 2886960648.

Almost surely, 2^{2078611407720} is an apocalyptic number.

2078611407720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2078611407720 is an abundant number, since it is smaller than the sum of its proper divisors (4676875668540).

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

2078611407720 is a wasteful number, since it uses less digits than its factorization.

2078611407720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5773920594 (or 5773920587 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 45.

The spelling of 2078611407720 in words is "two trillion, seventy-eight billion, six hundred eleven million, four hundred seven thousand, seven hundred twenty".