651442426532 has 6 divisors (see below), whose sum is σ = 1140024246438. Its totient is φ = 325721213264.

The previous prime is 651442426499. The next prime is 651442426541. The reversal of 651442426532 is 235624244156.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 631239784036 + 20202642496 = 794506^2 + 142136^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81430303313 + ... + 81430303320.

It is an arithmetic number, because the mean of its divisors is an integer number (190004041073).

Almost surely, 2^651442426532 is an apocalyptic number.

It is an amenable number.

651442426532 is a deficient number, since it is larger than the sum of its proper divisors (488581819906).

651442426532 is a wasteful number, since it uses less digits than its factorization.

651442426532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162860606637 (or 162860606635 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 44.

The spelling of 651442426532 in words is "six hundred fifty-one billion, four hundred forty-two million, four hundred twenty-six thousand, five hundred thirty-two".