61334689497 has 32 divisors (see below), whose sum is σ = 85406330880. Its totient is φ = 39104352000.

The previous prime is 61334689489. The next prime is 61334689511. The reversal of 61334689497 is 79498643316.

It is not a de Polignac number, because 61334689497 - 2³ = 61334689489 is a prime.

It is a super-2 number, since 2×61334689497² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 61334689497.

It is not an unprimeable number, because it can be changed into a prime (61334689477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7210747 + ... + 7219247.

It is an arithmetic number, because the mean of its divisors is an integer number (2668947840).

Almost surely, 2^61334689497 is an apocalyptic number.

It is an amenable number.

61334689497 is a deficient number, since it is larger than the sum of its proper divisors (24071641383).

61334689497 is a wasteful number, since it uses less digits than its factorization.

61334689497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9313.

The product of its digits is 23514624, while the sum is 60.

The spelling of 61334689497 in words is "sixty-one billion, three hundred thirty-four million, six hundred eighty-nine thousand, four hundred ninety-seven".