61416260788428 has 72 divisors (see below), whose sum is σ = 191072811351968. Its totient is φ = 16197695152128.

The previous prime is 61416260788367. The next prime is 61416260788471. The reversal of 61416260788428 is 82488706261416.

It is a happy number.

61416260788428 is a `hidden beast` number, since 6 + 1 + 4 + 16 + 2 + 607 + 8 + 8 + 4 + 2 + 8 = 666.

It is a super-2 number, since 2×61416260788428² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9373662901 + ... + 9373669452.

Almost surely, 2^{61416260788428} is an apocalyptic number.

It is an amenable number.

61416260788428 is an abundant number, since it is smaller than the sum of its proper divisors (129656550563540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61416260788428 is a wasteful number, since it uses less digits than its factorization.

61416260788428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18747332383 (or 18747332378 counting only the distinct ones).

The product of its (nonzero) digits is 49545216, while the sum is 63.

The spelling of 61416260788428 in words is "sixty-one trillion, four hundred sixteen billion, two hundred sixty million, seven hundred eighty-eight thousand, four hundred twenty-eight".