1964761485 has 32 divisors (see below), whose sum is σ = 3341907072. Its totient is φ = 982272000.

The previous prime is 1964761483. The next prime is 1964761507. The reversal of 1964761485 is 5841674691.

It is not a de Polignac number, because 1964761485 - 2¹ = 1964761483 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1964761483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48657 + ... + 79353.

It is an arithmetic number, because the mean of its divisors is an integer number (104434596).

Almost surely, 2^1964761485 is an apocalyptic number.

1964761485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1964761485 is a deficient number, since it is larger than the sum of its proper divisors (1377145587).

1964761485 is a wasteful number, since it uses less digits than its factorization.

1964761485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30973.

The product of its digits is 1451520, while the sum is 51.

The square root of 1964761485 is about 44325.6301139645. The cubic root of 1964761485 is about 1252.4775363400.

The spelling of 1964761485 in words is "one billion, nine hundred sixty-four million, seven hundred sixty-one thousand, four hundred eighty-five".