5406778372706 has 16 divisors (see below), whose sum is σ = 8562350902560. Its totient is φ = 2553505819200.

The previous prime is 5406778372643. The next prime is 5406778372711. The reversal of 5406778372706 is 6072738776045.

It is a happy number.

It is a super-2 number, since 2×5406778372706² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211090520 + ... + 211116131.

It is an arithmetic number, because the mean of its divisors is an integer number (535146931410).

Almost surely, 2^{5406778372706} is an apocalyptic number.

5406778372706 is a deficient number, since it is larger than the sum of its proper divisors (3155572529854).

5406778372706 is a wasteful number, since it uses less digits than its factorization.

5406778372706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422207009.

The product of its (nonzero) digits is 82978560, while the sum is 62.

The spelling of 5406778372706 in words is "five trillion, four hundred six billion, seven hundred seventy-eight million, three hundred seventy-two thousand, seven hundred six".