45651209680 has 80 divisors (see below), whose sum is σ = 106571821824. Its totient is φ = 18186206720.

The previous prime is 45651209657. The next prime is 45651209683. The reversal of 45651209680 is 8690215654.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 45651209680.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45651209683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34927587 + ... + 34928893.

Almost surely, 2^45651209680 is an apocalyptic number.

45651209680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45651209680 is an abundant number, since it is smaller than the sum of its proper divisors (60920612144).

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

45651209680 is a wasteful number, since it uses less digits than its factorization.

45651209680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2764 (or 2758 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 46.

The spelling of 45651209680 in words is "forty-five billion, six hundred fifty-one million, two hundred nine thousand, six hundred eighty".