61648858690611 has 16 divisors (see below), whose sum is σ = 85037015433888. Its totient is φ = 39699820448000.

The previous prime is 61648858690609. The next prime is 61648858690619. The reversal of 61648858690611 is 11609685884616.

It is a cyclic number.

It is not a de Polignac number, because 61648858690611 - 2¹ = 61648858690609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61648858690619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2481226356 + ... + 2481251201.

It is an arithmetic number, because the mean of its divisors is an integer number (5314813464618).

Almost surely, 2^{61648858690611} is an apocalyptic number.

61648858690611 is a deficient number, since it is larger than the sum of its proper divisors (23388156743277).

61648858690611 is a wasteful number, since it uses less digits than its factorization.

61648858690611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4962477702.

The product of its (nonzero) digits is 119439360, while the sum is 69.

The spelling of 61648858690611 in words is "sixty-one trillion, six hundred forty-eight billion, eight hundred fifty-eight million, six hundred ninety thousand, six hundred eleven".