307940990545 has 16 divisors (see below), whose sum is σ = 391014650880. Its totient is φ = 232164921600.

The previous prime is 307940990527. The next prime is 307940990549. The reversal of 307940990545 is 545099049703.

It is a happy number.

It is not a de Polignac number, because 307940990545 - 2¹⁹ = 307940466257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (307940990549) 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, 8467416 + ... + 8503705.

It is an arithmetic number, because the mean of its divisors is an integer number (24438415680).

Almost surely, 2^307940990545 is an apocalyptic number.

It is an amenable number.

307940990545 is a deficient number, since it is larger than the sum of its proper divisors (83073660335).

307940990545 is a wasteful number, since it uses less digits than its factorization.

307940990545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16971336.

The product of its (nonzero) digits is 6123600, while the sum is 55.

The spelling of 307940990545 in words is "three hundred seven billion, nine hundred forty million, nine hundred ninety thousand, five hundred forty-five".