651423252480 has 1152 divisors, whose sum is σ = 2807287289856. Its totient is φ = 124570828800.

The previous prime is 651423252419. The next prime is 651423252481. The reversal of 651423252480 is 84252324156.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651423252481) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1968045915 + ... + 1968046245.

It is an arithmetic number, because the mean of its divisors is an integer number (2436881328).

Almost surely, 2^651423252480 is an apocalyptic number.

651423252480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 651423252480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1403643644928).

651423252480 is an abundant number, since it is smaller than the sum of its proper divisors (2155864037376).

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

651423252480 is a wasteful number, since it uses less digits than its factorization.

651423252480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 42.

The spelling of 651423252480 in words is "six hundred fifty-one billion, four hundred twenty-three million, two hundred fifty-two thousand, four hundred eighty".