651061376 has 64 divisors (see below), whose sum is σ = 1569559680. Its totient is φ = 262606848.

The previous prime is 651061373. The next prime is 651061417. The reversal of 651061376 is 673160156.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (651061373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6140 + ... + 36603.

It is an arithmetic number, because the mean of its divisors is an integer number (24524370).

Almost surely, 2^651061376 is an apocalyptic number.

It is an amenable number.

651061376 is an abundant number, since it is smaller than the sum of its proper divisors (918498304).

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

651061376 is a wasteful number, since it uses less digits than its factorization.

651061376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42781 (or 42769 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 651061376 is about 25515.9043735471. The cubic root of 651061376 is about 866.7103388907.

The spelling of 651061376 in words is "six hundred fifty-one million, sixty-one thousand, three hundred seventy-six".