45671781380 has 12 divisors (see below), whose sum is σ = 95910740940. Its totient is φ = 18268712544.

The previous prime is 45671781317. The next prime is 45671781383. The reversal of 45671781380 is 8318717654.

It can be written as a sum of positive squares in 2 ways, for example, as 16899480004 + 28772301376 = 129998^2 + 169624^2 .

It is a super-2 number, since 2×45671781380² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45671781383) 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, 1141794515 + ... + 1141794554.

It is an arithmetic number, because the mean of its divisors is an integer number (7992561745).

Almost surely, 2^45671781380 is an apocalyptic number.

It is an amenable number.

45671781380 is an abundant number, since it is smaller than the sum of its proper divisors (50238959560).

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

45671781380 is a wasteful number, since it uses less digits than its factorization.

45671781380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2283589078 (or 2283589076 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 50.

The spelling of 45671781380 in words is "forty-five billion, six hundred seventy-one million, seven hundred eighty-one thousand, three hundred eighty".