2920381258860 has 144 divisors (see below), whose sum is σ = 9847651457280. Its totient is φ = 695673930240.

The previous prime is 2920381258849. The next prime is 2920381258961. The reversal of 2920381258860 is 688521830292.

It is a happy number.

2920381258860 is a `hidden beast` number, since 2 + 9 + 2 + 0 + 381 + 258 + 8 + 6 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2920381258797 and 2920381258806.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20056915 + ... + 20201994.

Almost surely, 2^{2920381258860} is an apocalyptic number.

2920381258860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2920381258860 is an abundant number, since it is smaller than the sum of its proper divisors (6927270198420).

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

2920381258860 is a wasteful number, since it uses less digits than its factorization.

2920381258860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40258968 (or 40258963 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 2920381258860 in words is "two trillion, nine hundred twenty billion, three hundred eighty-one million, two hundred fifty-eight thousand, eight hundred sixty".