61970255808 has 56 divisors (see below), whose sum is σ = 164402737488. Its totient is φ = 20601348096.

The previous prime is 61970255803. The next prime is 61970255843. The reversal of 61970255808 is 80855207916.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61970255803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361041 + ... + 504272.

Almost surely, 2^61970255808 is an apocalyptic number.

It is an amenable number.

61970255808 is an abundant number, since it is smaller than the sum of its proper divisors (102432481680).

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

61970255808 is a wasteful number, since it uses less digits than its factorization.

61970255808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865701 (or 865691 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 51.

The spelling of 61970255808 in words is "sixty-one billion, nine hundred seventy million, two hundred fifty-five thousand, eight hundred eight".