2651405247420 has 96 divisors (see below), whose sum is σ = 7439796302400. Its totient is φ = 705532329984.

The previous prime is 2651405247389. The next prime is 2651405247433. The reversal of 2651405247420 is 247425041562.

It is a super-2 number, since 2×2651405247420² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56682682 + ... + 56729438.

It is an arithmetic number, because the mean of its divisors is an integer number (77497878150).

Almost surely, 2^{2651405247420} is an apocalyptic number.

2651405247420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2651405247420 is an abundant number, since it is smaller than the sum of its proper divisors (4788391054980).

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

2651405247420 is a wasteful number, since it uses less digits than its factorization.

2651405247420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48767 (or 48765 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 42.

The spelling of 2651405247420 in words is "two trillion, six hundred fifty-one billion, four hundred five million, two hundred forty-seven thousand, four hundred twenty".