61327470961465 has 16 divisors (see below), whose sum is σ = 73935411991056. Its totient is φ = 48833883187200.

The previous prime is 61327470961423. The next prime is 61327470961483. The reversal of 61327470961465 is 56416907472316.

It can be written as a sum of positive squares in 8 ways, for example, as 2192401416976 + 59135069544489 = 1480676^2 + 7689933^2 .

It is a de Polignac number, because none of the positive numbers 2^k-61327470961465 is a prime.

It is a super-2 number, since 2×61327470961465² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10366666 + ... + 15169795.

It is an arithmetic number, because the mean of its divisors is an integer number (4620963249441).

Almost surely, 2^{61327470961465} is an apocalyptic number.

It is an amenable number.

61327470961465 is a deficient number, since it is larger than the sum of its proper divisors (12607941029591).

61327470961465 is a wasteful number, since it uses less digits than its factorization.

61327470961465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25538700.

The product of its (nonzero) digits is 45722880, while the sum is 61.

The spelling of 61327470961465 in words is "sixty-one trillion, three hundred twenty-seven billion, four hundred seventy million, nine hundred sixty-one thousand, four hundred sixty-five".