2651343621436 has 24 divisors (see below), whose sum is σ = 4760364875616. Its totient is φ = 1291339322880.

The previous prime is 2651343621431. The next prime is 2651343621463. The reversal of 2651343621436 is 6341263431562.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2651343621431) 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, 12387501 + ... + 12599716.

It is an arithmetic number, because the mean of its divisors is an integer number (198348536484).

Almost surely, 2^{2651343621436} is an apocalyptic number.

It is an amenable number.

2651343621436 is a deficient number, since it is larger than the sum of its proper divisors (2109021254180).

2651343621436 is a wasteful number, since it uses less digits than its factorization.

2651343621436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24987909 (or 24987907 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 46.

The spelling of 2651343621436 in words is "two trillion, six hundred fifty-one billion, three hundred forty-three million, six hundred twenty-one thousand, four hundred thirty-six".