947090622465 has 24 divisors (see below), whose sum is σ = 1767902496360. Its totient is φ = 466259998464.

The previous prime is 947090622463. The next prime is 947090622509. The reversal of 947090622465 is 564226090749.

947090622465 is a `hidden beast` number, since 9 + 4 + 7 + 0 + 9 + 0 + 622 + 4 + 6 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 18027895824 + 929062726641 = 134268^2 + 963879^2 .

It is not a de Polignac number, because 947090622465 - 2¹ = 947090622463 is a prime.

It is a super-2 number, since 2×947090622465² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (947090622463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 809478580 + ... + 809479749.

It is an arithmetic number, because the mean of its divisors is an integer number (73662604015).

Almost surely, 2^947090622465 is an apocalyptic number.

It is an amenable number.

947090622465 is a deficient number, since it is larger than the sum of its proper divisors (820811873895).

947090622465 is a wasteful number, since it uses less digits than its factorization.

947090622465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618958353 (or 1618958350 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 947090622465 in words is "nine hundred forty-seven billion, ninety million, six hundred twenty-two thousand, four hundred sixty-five".