61400381276 has 12 divisors (see below), whose sum is σ = 115716103272. Its totient is φ = 28338637488.

The previous prime is 61400381269. The next prime is 61400381299. The reversal of 61400381276 is 67218300416.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590388230 + ... + 590388333.

It is an arithmetic number, because the mean of its divisors is an integer number (9643008606).

Almost surely, 2^61400381276 is an apocalyptic number.

It is an amenable number.

61400381276 is a deficient number, since it is larger than the sum of its proper divisors (54315721996).

61400381276 is a wasteful number, since it uses less digits than its factorization.

61400381276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180776580 (or 1180776578 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 61400381276 in words is "sixty-one billion, four hundred million, three hundred eighty-one thousand, two hundred seventy-six".