2516620623378 has 8 divisors (see below), whose sum is σ = 5033241246768. Its totient is φ = 838873541124.

The previous prime is 2516620623367. The next prime is 2516620623427. The reversal of 2516620623378 is 8733260266152.

It is a sphenic number, since it is the product of 3 distinct primes.

2516620623378 is an admirable number.

It is a super-2 number, since 2×2516620623378² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2516620623378.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209718385276 + ... + 209718385287.

It is an arithmetic number, because the mean of its divisors is an integer number (629155155846).

Almost surely, 2^{2516620623378} is an apocalyptic number.

2516620623378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2516620623378 is a wasteful number, since it uses less digits than its factorization.

2516620623378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419436770568.

The product of its (nonzero) digits is 4354560, while the sum is 51.

The spelling of 2516620623378 in words is "two trillion, five hundred sixteen billion, six hundred twenty million, six hundred twenty-three thousand, three hundred seventy-eight".