70771542154 has 4 divisors (see below), whose sum is σ = 106157313234. Its totient is φ = 35385771076.

The previous prime is 70771542139. The next prime is 70771542161. The reversal of 70771542154 is 45124517707.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45124517707 = 28591 ⋅1578277.

It can be written as a sum of positive squares in only one way, i.e., 65247039225 + 5524502929 = 255435^2 + 74327^2 .

It is a super-2 number, since 2×70771542154² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 70771542154.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17692885537 + ... + 17692885540.

Almost surely, 2^70771542154 is an apocalyptic number.

70771542154 is a deficient number, since it is larger than the sum of its proper divisors (35385771080).

70771542154 is a wasteful number, since it uses less digits than its factorization.

70771542154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35385771079.

The product of its (nonzero) digits is 274400, while the sum is 43.

The spelling of 70771542154 in words is "seventy billion, seven hundred seventy-one million, five hundred forty-two thousand, one hundred fifty-four".