61497823354 has 12 divisors (see below), whose sum is σ = 101395171962. Its totient is φ = 27953555960.

The previous prime is 61497823337. The next prime is 61497823381. The reversal of 61497823354 is 45332879416.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 60946278129 + 551545225 = 246873^2 + 23485^2 .

It is a super-3 number, since 3×61497823354³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 127061377 + ... + 127061860.

Almost surely, 2^61497823354 is an apocalyptic number.

61497823354 is a deficient number, since it is larger than the sum of its proper divisors (39897348608).

61497823354 is a wasteful number, since it uses less digits than its factorization.

61497823354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254123261 (or 254123250 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 52.

The spelling of 61497823354 in words is "sixty-one billion, four hundred ninety-seven million, eight hundred twenty-three thousand, three hundred fifty-four".