65740727451 has 24 divisors (see below), whose sum is σ = 103110906960. Its totient is φ = 37144031232.

The previous prime is 65740727443. The next prime is 65740727537. The reversal of 65740727451 is 15472704756.

It is not a de Polignac number, because 65740727451 - 2³ = 65740727443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65740727451.

It is not an unprimeable number, because it can be changed into a prime (65740727401) 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, 2499366 + ... + 2525531.

It is an arithmetic number, because the mean of its divisors is an integer number (4296287790).

Almost surely, 2^65740727451 is an apocalyptic number.

65740727451 is a deficient number, since it is larger than the sum of its proper divisors (37370179509).

65740727451 is a wasteful number, since it uses less digits than its factorization.

65740727451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5025003 (or 5024996 counting only the distinct ones).

The product of its (nonzero) digits is 1646400, while the sum is 48.

The spelling of 65740727451 in words is "sixty-five billion, seven hundred forty million, seven hundred twenty-seven thousand, four hundred fifty-one".