651426155436 has 48 divisors (see below), whose sum is σ = 1738564079616. Its totient is φ = 185968794624.

The previous prime is 651426155411. The next prime is 651426155539. The reversal of 651426155436 is 634551624156.

It is a happy number.

It is a super-2 number, since 2×651426155436² (a number of 24 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 3083916 + ... + 3288371.

It is an arithmetic number, because the mean of its divisors is an integer number (36220084992).

Almost surely, 2^651426155436 is an apocalyptic number.

It is an amenable number.

651426155436 is an abundant number, since it is smaller than the sum of its proper divisors (1087137924180).

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

651426155436 is a wasteful number, since it uses less digits than its factorization.

651426155436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6373518 (or 6373516 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 48.

The spelling of 651426155436 in words is "six hundred fifty-one billion, four hundred twenty-six million, one hundred fifty-five thousand, four hundred thirty-six".