61228849204892 has 6 divisors (see below), whose sum is σ = 107150486108568. Its totient is φ = 30614424602444.

The previous prime is 61228849204891. The next prime is 61228849204921. The reversal of 61228849204892 is 29840294882216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61228849204891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7653606150608 + ... + 7653606150615.

It is an arithmetic number, because the mean of its divisors is an integer number (17858414351428).

Almost surely, 2^{61228849204892} is an apocalyptic number.

It is an amenable number.

61228849204892 is a deficient number, since it is larger than the sum of its proper divisors (45921636903676).

61228849204892 is a wasteful number, since it uses less digits than its factorization.

61228849204892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15307212301227 (or 15307212301225 counting only the distinct ones).

The product of its (nonzero) digits is 63700992, while the sum is 65.

The spelling of 61228849204892 in words is "sixty-one trillion, two hundred twenty-eight billion, eight hundred forty-nine million, two hundred four thousand, eight hundred ninety-two".