39545737046940 has 48 divisors (see below), whose sum is σ = 110738928591648. Its totient is φ = 10544495130624.

The previous prime is 39545737046839. The next prime is 39545737046941. The reversal of 39545737046940 is 4964073754593.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39545737046941) 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, 31719217 + ... + 32942376.

It is an arithmetic number, because the mean of its divisors is an integer number (2307061012326).

Almost surely, 2^{39545737046940} is an apocalyptic number.

39545737046940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

39545737046940 is an abundant number, since it is smaller than the sum of its proper divisors (71193191544708).

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

39545737046940 is a wasteful number, since it uses less digits than its factorization.

39545737046940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64671798 (or 64671796 counting only the distinct ones).

The product of its (nonzero) digits is 342921600, while the sum is 66.

The spelling of 39545737046940 in words is "thirty-nine trillion, five hundred forty-five billion, seven hundred thirty-seven million, forty-six thousand, nine hundred forty".