651043772 has 12 divisors (see below), whose sum is σ = 1176079296. Its totient is φ = 315021120.

The previous prime is 651043769. The next prime is 651043777. The reversal of 651043772 is 277340156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651043777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2625053 + ... + 2625300.

It is an arithmetic number, because the mean of its divisors is an integer number (98006608).

Almost surely, 2^651043772 is an apocalyptic number.

651043772 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

651043772 is a deficient number, since it is larger than the sum of its proper divisors (525035524).

651043772 is a wasteful number, since it uses less digits than its factorization.

651043772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5250388 (or 5250386 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 651043772 is about 25515.5594098973. The cubic root of 651043772 is about 866.7025271815.

The spelling of 651043772 in words is "six hundred fifty-one million, forty-three thousand, seven hundred seventy-two".