67904792890 has 64 divisors (see below), whose sum is σ = 140842893312. Its totient is φ = 23340340800.

The previous prime is 67904792863. The next prime is 67904792897. The reversal of 67904792890 is 9829740976.

It is a super-2 number, since 2×67904792890² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67904792897) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84922 + ... + 378181.

It is an arithmetic number, because the mean of its divisors is an integer number (2200670208).

Almost surely, 2^67904792890 is an apocalyptic number.

67904792890 is an abundant number, since it is smaller than the sum of its proper divisors (72938100422).

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

67904792890 is a wasteful number, since it uses less digits than its factorization.

67904792890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463195.

The product of its (nonzero) digits is 13716864, while the sum is 61.

The spelling of 67904792890 in words is "sixty-seven billion, nine hundred four million, seven hundred ninety-two thousand, eight hundred ninety".